作业帮几道选择题,对选择理由请稍作解释
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/07/07 11:13:16
几道选择题,对选择理由请稍作解释
There is a police car in front of his house,what do you suppose______to him?
A. happens B.has happened
The water will be further polluted unless some firm measures______
A. will be taken B.are taken C. were taken D.had been taken
No permission_____for anybody to enter the building.
A.has been given B.was given c. will give D. is giving
We______the star for an hour,but he ______ yet.
A. have waited for;hasn't come B.have waited for;doesn't come C.have been waited for;doesn't come D.have been waiting for;doesn't come
最后一题的最后一个选项应该是 D.have been waiting for;hasn't come
There is a police car in front of his house,what do you suppose______to him?
A. happens B.has happened
The water will be further polluted unless some firm measures______
A. will be taken B.are taken C. were taken D.had been taken
No permission_____for anybody to enter the building.
A.has been given B.was given c. will give D. is giving
We______the star for an hour,but he ______ yet.
A. have waited for;hasn't come B.have waited for;doesn't come C.have been waited for;doesn't come D.have been waiting for;doesn't come
最后一题的最后一个选项应该是 D.have been waiting for;hasn't come
B.has happened
现在完成时,强调他发生了什么
B.are taken
unless引导的句子中,主句用一般将来时,从句用一般现在时表将来
A.has been given
强调到目前为止,没有.
D.have been waiting for;hasn't come
have been waiting 现在完成进行时,表示过去一直在等,到现在,有可能还要继续等下去
再问： 再仔细看一下最后面的一个题，我怎么没看到两个完成时同时出现在一个句子里面的情况啊？ 是否其中一句应该改为一般现在时呢？
再答： 有吧，我以前也见过这类题的，前面用现在完成进行时，表示已经一直在等，有可能还需要继续等（因为他还没有来），而后面有个yet更是典型的用完成时，he hasn't come yet 他到目前为止还没有来。 我们已经在这等了一个多小时了，但是还到现在还没有来。 逻辑上还算正常的吧 还有这题目在网上搜一下，有类似的题目滴。。http://zhidao.baidu.com/question/38934928.html?an=0&si=2
现在完成时,强调他发生了什么
B.are taken
unless引导的句子中,主句用一般将来时,从句用一般现在时表将来
A.has been given
强调到目前为止,没有.
D.have been waiting for;hasn't come
have been waiting 现在完成进行时,表示过去一直在等,到现在,有可能还要继续等下去
再问： 再仔细看一下最后面的一个题，我怎么没看到两个完成时同时出现在一个句子里面的情况啊？ 是否其中一句应该改为一般现在时呢？
再答： 有吧，我以前也见过这类题的，前面用现在完成进行时，表示已经一直在等，有可能还需要继续等（因为他还没有来），而后面有个yet更是典型的用完成时，he hasn't come yet 他到目前为止还没有来。 我们已经在这等了一个多小时了，但是还到现在还没有来。 逻辑上还算正常的吧 还有这题目在网上搜一下，有类似的题目滴。。http://zhidao.baidu.com/question/38934928.html?an=0&si=2