ClassmateOPTION A: A Class Reunion OPTION B: An Alumni Reunion OPTION A: A Class Reunion OPTION B: An Alumni Reunion

He showed pity when sayingexpressed regret about thatis. He expressed regret about this.

He showed pity when saying that.

“Pity” is the wrong word here. You could use “regret” instead, or simply change “said” to “lamented” in the previous sentence and delete this one.

He showed pity when saying that. He showed pity when saying that.

I think using the word "sadness" would be better here.

He showALSO POSSIBLE: He expressed pity when saying that. ALSO POSSIBLE: He expressed pity when saying that.

I recommendsuggested that we take turns to treat the classmates to a meal monthly. I suggested that we take turns to treat the classmates to a meal monthly.

I recommendproposed that we take turns {to treat the classmates| treating} each other to a meal monthly. I proposed that we take turns {to treat | treating} each other to a meal monthly.

SMOOTHER: I recommended that we take turns to treat thereaingt our classmates to a meal monthly meal. SMOOTHER: I recommended that we take turns treaingt our classmates to a monthly meal.

All the classmates at the mealdinner agreed towith the proposal/idea. All the classmates at the dinner agreed with the proposal/idea.

All the classmates at the mealMORE SUCCINCTLY: All classmates agreed to theat proposal. MORE SUCCINCTLY: All classmates agreed to that proposal.

Since then, we have taken turns to treat the classmatesbeen taking turns hosting monthly meals . Since then, we have been taking turns hosting monthly meals .

Since then, we have taken turns to treat the classmates/ treating each other monthly. Since then, we have taken turns to treat / treating each other monthly.

Since then, we have taken turns to treat the classmateseach other monthly. Since then, we have taken turns to treat each other monthly.

ALSO POSSIBLE: Since then, we have taken turns to treat theing our classmates monthly. ALSO POSSIBLE: Since then, we have taken turns treating our classmates monthly.

A few years ago, at a dinner party, one of my classmates said that we rarely met each other although we were in the same city. A few years ago, at a dinner party, one of my classmates said that we rarely met each other although we were in the same city.

"mentioned that we rarely saw each other" is more natural

A few years ago, at a dinner party, one of my classmates sailamented that we rarely met each other although we were in the same city. A few years ago, at a dinner party, one of my classmates lamented that we rarely met each other although we were in the same city.

ALSO POSSIBLE: A few years ago, at a dinner party, one of my classmates said that we rarely met each other although we were in the same cdespite our proximity. ALSO POSSIBLE: A few years ago, at a dinner party, one of my classmates said that we rarely met each other despite our proximity.

VOLCABULARY: proximity -> 近接

There are actually thirteen classmateIn total, there are thirteen of us living in my city. In total, there are thirteen of us living in my city.

TAt the time of the proposal, there awere actually thirteen classmateof us living in my city. At the time of the proposal, there were actually thirteen of us living in my city.

Your original doesn’t work because two are dead, so they can’t be “living.”

I had lunch today with nine of my classmates who were with me when I was in a specialized technical secondary school. I had lunch today with nine of my classmates who were with me when I was in a specialized technical secondary school.

Better: from the specialized technical secondary school I attended

MORE NATURALLY: I had lunch today with nine of my classmates who were with me when I was in aformer specialized technical secondary school classmates. MORE NATURALLY: I had lunch today with nine of my former specialized technical secondary school classmates.

One female classmate doesn’t like to getprefers not to stay in touch with us, so she doesn’t take part. One female classmate prefers not to stay in touch with us, so she doesn’t take part.

Thewo other two classmates passed away before the united - meal event was formedwe started this regular gathering. Two other classmates passed away before we started this regular gathering.

The other two classmates passed away before the united - meal event was formdecided. The other two classmates passed away before the united meal event was decided.

Now there are only ten of us attending. Now only ten of us attend.

It is difficult to have a reunion meal with all the classmates present, because every time, one or two, sometimes even more classmates can’t attend the meal because offor some reasons. It is difficult to have a reunion meal with all the classmates present, because every time, one or two, sometimes even more classmates can’t attend the meal for some reasons.

It is difficult to have a reunion meal with all the classmates present, because every time, one or two, —sometimes even more —classmates can’t attend the meal because of somone reasons or another. It is difficult to have a reunion meal with all the classmates present, because every time, one or two—sometimes even more—classmates can’t attend the meal because of one reason or another.

When we studied inat that specialized technical secondary school, there were two classes with total of 58 students, but eight of them have passed away. When we studied at that specialized technical secondary school, there were two classes with total of 58 students, but eight of them have passed away.

When we studied in that specialized technical secondary school, there were two classes with a total of 58 students, but eight of them have passed away. When we studied in that specialized technical secondary school, there were two classes with a total of 58 students, but eight of them have passed away.

Your original is ambiguous—it could mean there we 58 in each class.

We are getting older and older, so the number of people attending the reunion meal will gradually {become smaller and smaller | shrink | dwindle}. We are getting older and older, so the number of people attending the reunion meal will gradually {become smaller and smaller | shrink | dwindle}.