My parents started off at about 5 o’cloc

题库2022-08-02  37

问题 My parents started off at about 5 o’clock in the morning. They ____ by now.(  )A. would be arriving B. should have arrived C. would have arrived D. should be arriving

选项 A. would be arriving
B. should have arrived
C. would have arrived
D. should be arriving

答案 B

解析 考查知识情态动词should与have done连用,表示一个本来应该做而事实上没有做的动作。
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