– I ran 10 miles last weekend. Can you believe that?
– Wow, that ______ easy!
| A.mustn' t be | B.mustn't have been |
| C.can't have been | D.couldn’t be |
You'd better take a heavy coat. Sometimes it ______ be very cold.
| A.should | B.can | C.will | D.must |
One of our rules is that every student wear the school uniform while at school.
| A.might | B.could | C.shall | D.will |
Go and do it right now, and you _____ have my help when in trouble.
| A.will | B.shall | C.should | D.must |
This basketball team had lots of excellent players, so its fans never expected that it ____ have failed in the final.
| A.must | B.might | C.should | D.need |
--- I haven’t got the reference book yet, but I will have a test on the subject next month.
--- Don’t worry. You ________ have it by Thursday.
| A.could | B.may | C.shall | D.must |
—Fined ¥100! You know you were driving 100 KM an hour, don't you?
—No, officer. I _____.This car doesn't do 80.
| A.shouldn't have been | B.mustn't have been |
| C.can't have been | D.mightn't have been |
Why______ you do everything as if you have to win?
| A.must | B.can | C.need | D.shall |
Mr. Smith is always on time for everything. How ________ it be that he was late for the flight?
| A.can | B.must | C.may | D.need |
Finally, the team reached the top of the mountain, they found some rare plants.
| A.why | B.which | C.where | D.as |