问题

This pair of jeans ________ them 300dollars.
A: needn’t, must
B: don’t have to, may
C:mustn’t, may
D: mustn’t, must
B: don’t have to, may
C:mustn’t, may
D: mustn’t, must
正确答案是:
同类题型
Tom studies _______. He _______plays with his friends.
What should I do ,doctor— ___healthy, you should take moreexercise.
___________ — Drop in if you have time.
g the firm as a clerk, he got rapid promotion, and ________ as a manager.
The number of students in our school ________about 30,000 and ________them study hard.