Often he________sit for hours doing nothing at all when he was in low spirits.

题型：陕西省同步题难度：来源：

Often he________sit for hours doing nothing at all when he was in low spirits. [     ]
A. should
B. would
C. could
D. might

答案

举一反三

I wish I________play tennis with them this afternoon, but I have to study for a test. [      ]
A. can
B. should
C. could
D. shall

题型：陕西省同步题难度：| 查看答案

—Julia looks very happy!She________have passed the TOEFL.
—I suppose so.It can"t have been too difficult for her,anyway.[     ]
A. could
B. might
C. must
D. should

题型：安徽省同步题难度：| 查看答案

— Hi,  Tom.Did you go to the party?
— Yes,  but I really________have,  because I had lots of work to do.I had to work far into
     the night to finish it.[      ]
A. needn"t
B. mustn"t
C. shouldn"t
D. couldn"t

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—It"s a wonderful way of getting to see Italy, and it also________cost very much.
— Terrific. [     ]
A. needn"t
B. mustn"t
C. couldn"t
D. shouldn"t

题型：安徽省同步题难度：| 查看答案

— Excuse me.Is this the way to the Summer Palace?
— Sorry, I am not sure.But it ________be. [     ]
A. must
B. should
C. would
D. might

题型：安徽省同步题难度：| 查看答案