Could I play computer games for a while, Mum? I’ve finished all my homework. —Oh, dear, if you _____.

1— I’m going to spend my winter vacation with my parentsin Hainan !— __________ !

There were no tickets _________ for Friday’s performance so we went to the cinema instead.

The flu is believed _____by viruses that like to reproduce in the cells inside the human nose and throat. [ ]

Bad luck! I lost my wallet again!—________．You’re always too careless with it.