（）in the queue for half an hour,tom sud denly realized that he had left his wallet at home
（）in the queue for half an hour,tom sud denly realized that he had left his wallet at home
a:To wait b:Have waited c:Having waited d:To have waited
为什么要用having?b,
由tom做的动作所以用ing形式?表主动?、
请一个一个的解释
a:To wait b:Have waited c:Having waited d:To have waited
为什么要用having?b,
由tom做的动作所以用ing形式?表主动?、
请一个一个的解释
英语人气：755 ℃时间：2020-05-24 10:14:36
优质解答
这是个非谓语结构,真正的谓语动词是 realize ,如果表示主动则为 Having done,被动则为 Having been done,意思是后面的这个动作在谓语动词表示的动作之前发生,本题中wait 动作发生在realize前,并且是Tom 主动发出的,故为正解.C 选项这种结构是不存在的,没有to + 完成时这种结构.
我来回答
类似推荐
- ____inthe queue for half an hour,Tom suddenly realized that he had left his wallet at home
- Having waited in the queue for half an hour,the old man suddently realized he had left his wallet
- It t____ Tom half an hour to get home everyday.
- 1、Tom ——that he had stolen the wallet.
- Tom was driving home from the station in his car yesterday evening when he had an accident.