I have only ridden thea bicycle so far today.

A more natural word order is "So far I have only ridden a bicycle today" or "Today I have only ridden a bicycle, so far". Ending the sentence with "so far today" is not weird, but it sounds like you're tacking on information at the end, like you are speaking and thinking at the same time. People write like this online but it's not a good word order for your homework.

PMy parent's' home is in the same city and it is appropriate rangenot too foar bicycle to get there on bicycle.

You usually wouldn't drop "my" from "my parents". It can be done in casual speech sometimes but it feels unnatural here.

I'm assuming you mean both of your parents - in this case you should write parents', with the apostrophe after s, not after t. Parent's implies there's only one parent. Native speakers make these kinds of mistakes all the time so don't worry about it too much.

"My parents' home is in the same city" - instead of saying "in the same city" it would be more natural to say "in the city" (you can infer from context that you mean the same city in which you currently are) or "within the city". I think most speakers would simply say "My parents live in the city" here.

"appropriate range" - if you insist on using this phrase, there should be an "an" before "appropriate".

Unfortunately todayhere is snow today.

It snowed today - snow was falling out of the sky earlier today
It is snowing today - snow is falling out of the sky right now
There is snow today - right now there is snow on the ground, whether it snowed today or earlier is not specified

Which Means of Transportation Have You Used Today?

I have only ridden thea bicycle so far today.

You could also say "my bicycle" to be more specific about who owns the bike you rode today.

PMy parent's' home is in the same city as mine, and it is an appropriate rdistangce for bicycle to get therto travel by bicycle.

1. < Parent's > is the correct possessive if the home belongs to only one of your parents. If you are referring to something that they both own, use < parents' >
2. (Optional) I can tell from what you've written that your parents live in the same city as you. You could make it more clear that you are comparing the location of their house to your house by adding "as mine".
3. (Optional) The word "distance" would be more commonly used than "range" in casual conversation, but both words are correct. You might also consider replacing the word "appropriate" with "reasonable" if you'd like to sound less formal.
4. My suggestion "to travel by bicycle" is a bit on the formal side. You could also say something like "to get to on a bicycle".

Unfortunately, today it is snowing.

My suggestion assumes there is currently snow falling. If there is snow on the ground but no snow falling from the sky today, you could say "today it is snowy"

Which Means of Transportation Have You Used Today?

I have only ridden themy bicycle so far today.

PMy parent's' home is in the same city and it is appropriate range for bicycle to get theres close enough to bike to.

Unfortunately itoday is snowing today.

Which Means of Transportation Have You Used Today?

I have only ridden themy bicycle (bike) so far today.

PMy parent's' home is in the same city and it is appropriate range for bicycle to get therwithin biking distance.

Unfortunately, today is snowing.

I have only ridden thea bicycle so far today.

you can also use the word bike if you want to make it less formal

PMy parent's home is in the same city and it is appropriate range for bicycle to get there.

Just establish the context on whose parents they are

Unfortunately today it is snowing.

or you could write 'unfortunately today there is snow' something like that

I have only ridden thea bicycle so far today.

PMy parent's home is in the same city as me, and it is appropriate range for bicyclclose enough for me to getbike there.

Unfortunately, today it is snowing.

Which Means of Transportation Have You Used Today?

I have only ridden the(a/my) bicycle so far today.

PMy parent's home is in the same city and it is appropriate range for bicycle to get there suitable distance to cycle to (an appropriate range to go by bicycle).

It's more natural to talk about "a suitable distance" than "an appropriate range" here, though the meaning is the same

Unfortunately today it is snowing.

Which Means of Transportation Have You Used Today?

I haSo far I’ve only ridden the bicycle so farmy bike today.

A more informal and casual option. We usually don’t say ‘bicycle’ but ‘bike’ instead.

PMy parent's’ home is in the same city and it is an appropriate range for bicycldistance to get there by bike.

Unfortunately today is snowit’s snowing today.

Parent's home is in the same city and it is appropriate range for bicycle to get there.

If the word is singular, it's correct (parent's), if you meant both parents - parents'.

Unfortunately today is snowing.