– Have you decided where to go for your summer vacation?– Not yet. We ___________ go to Mount Lu. It is a good place for vacation.A. may B. should C. must
--_______do you eat junk food?----Twice a week.
—You look sad. What has happened?--Everyone ____us ____the match, but we lost .
He can speak ____ Japanese .
May I ask you ____ questions?
-How long may I ______ your book?-For one week ,But you can’t____ it to others .