--- Where are the students ? How could they keep us waiting for so long? --- Th
题型：不详难度：来源：
--- Where are the students ? How could they keep us waiting for so long?
--- They started an hour ago and they____ be here in fifteen minutes, I think.| A．might | B．would | C．should | D．must |
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答案
| C |
解析
| should在这里表示预期，“应该会，可能”。can表示有能力做或能够发生；would表示想象中的结果；must表推测，或表必须。 |
举一反三
.— Jenny looks hot and dry.
— So______ you if you had a high fever. |
The rules require that ______you only one guest to the dinner. But they requires______ | A．will bring; reforming | B．should bring; to reform | | C．bring; reforming | D．have brought; to be reformed |
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| It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off. |
I was really anxious about you. You _____ __ home without a word. | A．mustn’t leave | B．shouldn’t have left | C．couldn’t have left | D．needn’t leave |
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— Write to me when you get home.
— __________.| A．I must | B．I should | C．I will | D．I can |
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