Living in the country side _____ fun, because the nature there is so beautiful.A. can’t be B. may be C. must be
—____, are you Maria? —No, I’m not. I’m Jane.
–Tom, it’s time to go to bed. -- Oh, I won’t do that _____ I finish my homework. A. if B. until C. after D when
_______ he is young, ______ he knows much.
______ he is in trouble, his best friend always helps me.
The plane was late, _________ we has to wait for half an hour.