Today I went to the library in order to complete today's learning process. Today I went to the library in order to complete today's learning process.

Today I went to the library in order to reach today's learning goal.

Today I went to the library in order to complete today's learning processstudying. Today I went to the library in order to complete today's studying.

It is difficult for me to concentrate on books when staying at home. It is difficult for me to concentrate on books at home.

It i's difficult for me to concentrate on books when staying at home. It's difficult for me to concentrate on books when staying at home.

"it is" is grammatically correct, but it sounds very robotic. using the contraction "it's" is a lot more natural

It is difficult for me to concentrate on books when staying at home. It is difficult for me to concentrate on books at home.

Because of the many temptations at home, I can't help but get distracted. Because of the many temptations at home, I can't help but get distracted.

Because of the many temptations at home, I can't help but get distracted. Because of the many temptations at home, I can't help but get distracted.

After everything was done, I went to my grandparents' homuse to eat dinner. After everything was done, I went to my grandparents' house to eat dinner.

After everything was doneI finished, I went to my grandparents' home to eat dinner. After I finished, I went to my grandparents' home to eat dinner.

Your sentence is correct. This is another way to say it.

My grandpa is suffering from the health problems. My grandpa is suffering from health problems.

My grandpa is suffering from the health problems. My grandpa is suffering from health problems.

My grandpa is suffering from the health problems. My grandpa is suffering from health problems.

It is painful for him to sit or walk, so he spends almost the entire day lying in bed. It is painful for him to sit or walk, so he spends almost the entire day lying in bed.

It is painful for him to sit or walk, so he spends almost entirof the day lying in bed. It is painful for him to sit or walk, so he spends most of the day lying in bed.

Last time I went there but I didn't see him, because my grandpa hadhe had taken a painkiller and then caught up on some sleep. Last time I went there but I didn't see him, because he had taken a painkiller and caught up on some sleep.

Last time I went there but didn't see him, because my grandpa had a painkiller and then caughtI didn't see him the last time I visited, because he took a painkiller to catch up on some sleep. I didn't see him the last time I visited, because he took a painkiller to catch up on sleep.

Today I saw him sitting by the bed, feellooking so uncomfortable. Today I saw him sitting by the bed, looking so uncomfortable.

I feelt heartbroken that he was just diagnosed with cancer about two years ago. I felt heartbroken that he was diagnosed with cancer about two years ago.

I feelam heartbroken that he was just diagnosed with cancer about two years ago. I am heartbroken that he was diagnosed with cancer about two years ago.

I know the only thing I can do now is to spend more time keeping him company and talking to him. I know the only thing I can do now is to spend more time keeping him company and talking to him.