He is a swimmer, and he swims very _____________ .

Our school has a big library. There are about ten books in it.

Her sister isn’t ________ to carry the box on her own.

Do you know Jack well? —- Certainly, we _________ friends since ten years ago.

I didn’t know you go to school by taxi.—-Oh, I __________ take a taxi to school, but my bike needs repairing.