- Could I invite my friends to a party? - Yes, of course you _ . A. can B. could C. must
He’ll phone you as soon as he ________ Beijing .
It takes him too much time __basketball. He should spend more time __his homework.
He fell off the bike ________.
The students were all tired but ________ of them stopped ________.
He is a teacher. He has been a teacher ____ 1990.