摘要： in the queue for half an hour, Tom suddenly realized that he had left his wallet at home. A. To wait B.Have waited C.Having waited D.To have waited 解析:本题考查现在分词完成式的用法.根据语法规则.当一个句子中前后两个部分被“. 隔开.而前一部分又不是一个完整的句子.则非完整的部分往往需要用非谓语动词.即用分词来连接句子.故排除A.B.D项.从题意可看出.“wait 这个动作发生在主句谓语动作realize之前.故用分词的完成式.即C项.
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________ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.
- A.To wait
- B.Have waited
- C.Having waited
- D.To have waited
______ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.
A. To wait B. Have waited ?
C. Having waited D. To have waited?
查看习题详情和答案>>______ in the queue for half an hour,Tom suddenly realized that he had left his wallet at home.
A.To wait B.Have waited
C.Having waited D.To have waited
查看习题详情和答案>> _______ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.
| A．To wait | B．Have waited | C．Having waited | D．To have waited |