题目内容
18.I ______ use a clock to wake me up because at six o'clock each morning the first train passes by my house.( )| A. | couldn't | B. | mustn't | C. | shouldn't | D. | needn't |
分析 我不需要用闹钟来叫醒因为每天早上六点钟的第一列火车从我家旁边经过.
解答 答案:D.couldn't不可能;mustn't禁止;shouldn't不应该;needn't不必.根据because at six o'clock each morning the first train passes by my house.可知火车的声音可以叫醒我,所以不必用闹钟,needn't不必,故选D.
点评 本题考查了情态动词的用法.熟知句意以及所给选项的意思是解答本题的关键.
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