—Let"s go to the movies tonight. —Sorry. I __ . I have to help my

题型：同步题难度：来源：

—Let"s go to the movies tonight.
—Sorry.  I      __ . I have to help my mother wash clothes.             [     ]
A. mustn"t
B. needn"t
C. can"t

答案

举一反三

—This winter H1Nl has become very popular in our country.
—Don"t worry, it by our government. [ ]
A. must be control
B. can control
C. can be controlled

题型：同步题难度：| 查看答案

—I like the party so much, but I        _ go home.  It"s too late.
—What a pity!               [     ]
A. have to
B. mustn"t
C. can

题型：同步题难度：| 查看答案

—Jack. All the young trees____at once.
—OK. I"ll do it at once.[ ]
A. must be watered
B. must water
C. must be watering

题型：同步题难度：| 查看答案

Another popular idea is that the Stonehenge       _ a kind of calendar.             [     ]
A. must be
B. can"t be
C. might be

题型：同步题难度：| 查看答案

You _______ walk across the road. It’s dangerous.[ ]
A. may not
B. don’t have to
C. must not
D. needn’t

题型：同步题难度：| 查看答案