题目内容
Tom didn't go to school_______ this morning because he overslept.
A. at once B. on time C. by accident D. at present
【答案】
B
【解析】考查词语辨析。at once “立刻;马上”;on time“按时”;by accident“偶然”;at present“目前;现在”。句意为“汤姆今天早晨没有按时上学,因为他睡过了头”故选B.
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Tom didn’t get ready for his speech, so he was very ______ when he stood in front of class.
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