It was so quiet in the classroom that a needle _________ to drop onto the floor.

题型：江苏专项题难度：来源：

It was so quiet in the classroom that a needle _________ to drop onto the floor. [ ]
A. could hear
B. was to be heard
C. could have been heard
D. must be heard

答案

举一反三

—Linda hasn"t shown up yet.
—It"s strange. She _________. [ ]
A. could
B. might
C. must have
D. should have

题型：江苏专项题难度：| 查看答案

—________ the woman with the baby come over? We have a seat here.
—Thank you, sir. Actually I do have my seat here. But my baby likes to look out of the window. [ ]
A. Would
B. Shall
C. Must
D. May

题型：江苏专项题难度：| 查看答案

If you write something and send it immediately by email, which you _______ later regret, there is no
chance for second thoughts. [ ]
A. would
B. should
C. have to
D. might

题型：江苏专项题难度：| 查看答案

The traffic is heavy these days. I______ arrive a bit late, so could you save me a place?   [     ]
A. can
B. might
C. need
D. must

题型：吉林省期中题难度：| 查看答案

As is natural, a snake like this ______ be very dangerous.[ ]
A. must
B. may
C. should
D. can

题型：江苏专项题难度：| 查看答案