– Can I watch TV now, Mum?– No, you can’t watch ______ you finish your homework.A. as B. after C. until
— May I watch TV now, mum?— No, you . You must clean your room first.
Mary used to in the countryside, but now she is used to in the city.
WeChat (微信) is very popular. the young the old are getting interested in it.
You are supposed to be more careful to make fewer while you are writing.
— Excuse me, are there any book stores around here?— , but there are some on Center Street.