When are you going to arrive at the library?

I'm afraid of flying.

I'm afraid of flying.

He spent a lot of time learning English.

He spent a lot of time learning English.

I'm afraid I can't attend your birthday party.

I'm afraid I can't go to your birthday party.

I wish you progress in your studies and go up a storey still higher! (*^__^*)

If you don't understand, ask again, please adopt it in time, thank you!