用现在完成时或现在完成进行时填空

题目

用现在完成时或现在完成进行时填空
1,They can't buy a television set because they (spend) all their money
2,The man (speak) for more than tow hours
3,The police (watch) him for several weeks
4,I 9boil)some water for your tea
5,The look tired.you (work)in the fields
6,I (wait)for half an hour for that bus and nowI'm going home

答案

1 They can't buy a television set because they have spent all their money .
2 The man has spoken for more than two hours.
3 The police has watched him for several weeks.
4 I have loiled some water for your tea.
5 They look tired.You have worked in the fields.
6 I have waited for an hour for that bus and now I'm going home.
现在完成时说白了就是have/has+过去分词