My newly-purchased magazine is nowhere to be found. ____ I left it on the train?

题型：重庆市期末题难度：来源：

My newly-purchased magazine is nowhere to be found. ____ I left it on the train?   [     ]
A. Must
B. Should
C. Would
D. Could

答案

举一反三

The World Wide Web is sometimes jokingly called the World Wide Wait because it ____ be very slow.[ ]
A. should
B. must
C. will
D. can

题型：甘肃省期末题难度：| 查看答案

— Why are those people gathering in the middle of the street?
— I don"t know. There ______ be an accident. [     ]
A. must
B. would
C. can
D. might

题型：甘肃省模拟题难度：| 查看答案

Just be patient.  You  ___ expect the world to change so  soon. [     ]
A. can"t
B. needn"t
C. may not
D. will not

题型：同步题难度：| 查看答案

It____be the  postman at the door. It"s only six o"clock. [     ]
A. mustn"t
B. can"t
C. won"t
D. needn"t

题型：同步题难度：| 查看答案

The police still   haven"t found the lost child, but they"re doing all they  ____.    [     ]
A. can
B. may
C. must
D. should

题型：同步题难度：| 查看答案