It is written clearly in the requirements that all passengers _______ check onto
题型：不详难度：来源：
| It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off. |
答案
| D |
解析
| shall作为情态动词，用于第二，三人称中表示许诺，警告，命令的意思。 |
举一反三
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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You can’t imagine that a well –behaved gentleman ______ be so rude to a lady. | A．might | B．need | C．should | D．would |
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Mr. Bush is on time for everything. How ____ it be that he was late for the opening ceremony ?| A．can | B．should | C．may | D．must |
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He hesitated for a moment before kicking the ball, otherwise he ______ a goal. | A．had scored | B．scored | C．would score | D．would have scored |
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