- — I heard the phone ringing in the office next door.— You ________ it. They haven't got a phone yet.[ ]A. couldn't ha...
- — I went to Tom's birthday party last night. A lot of my good friends were there too.— It ________ fun.[ ]A. must beB...
- —Sorry, I'm late.—It's OK. However, you________come to the company today, for it is Saturday.[ ]A. couldn't haveB. ne...
- Had they known what was coming next, they________ second thoughts.[ ]A. may haveB. could haveC. must have hadD. might...
- —He worked out such difficult questions at a very young age.—Oh, he _______a very smart student then[ ]A. could have ...
- Thank you for all your hard work last week. I don't think we ______ it without you.[ ]A. can manageB. could have mana...
- Thank you for all your hard work last week. I don't think we ______ it without you.[ ]A. can manageB. could have mana...
- — Did you go to the open-air concert?— No. We ____. but we spent too much time shopping.[ ]A. could have goneB. must ...
- — I didn't go to work yesterday because my car broke down.— You _____ mine. I wasn't using it then.[ ]A. might borrow...
- He________ full marks, but he was so careless as to make a spelling mistake.[ ]A. must have gainedB. might gainC. cou...
- He________ full marks, but he was so careless as to make a spelling mistake.[ ]A. must have gainedB. might gainC. cou...
- Hannah ________me; otherwise, other students wouldn't have known my result of the quiz.[ ]A. may betrayB. must betray...
- Jack described his father, who ________ a brave boy many years ago, as a strongwilled man.[ ]A. would beB. would have...
- — Show me your permit, please.— Oh, it's not in my pocket. It ________.[ ]A. might fall outB. could fall outC. should...
- He the company for five years.[ ]A.is in charge ofB. is in the charge ofC. has been in charge ofD. has been in the ch...