不解的语法：All we have to do is to calm down when we are in troub

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/06/14 08:55:27

不解的语法：All we have to do is to calm down when we are in trouble.
这是百思英语中的一题选择题,All we have to do （is to） calm down when we are in trouble.
A.is to B.was to C.are to D.were to
括号中的为A
为什么选A呢?All不是复数吗?还有的是这个句子关联什么语法的?谢谢
。。应该是那请问~句中be to do 是关于什么语法的吖？

这句里all作代词表示：1.全部,所有,全体
2.唯一的事物,一切,所有的事物
all作代词,其单复数取决于其所指代的对象
all of the people are Chinese.(可熟复数0
all of the apple has been eaten.(可数单数）
all of the tea has gone.(不可数）
we have eaten it all(单数）
你给出的例句中,all引导的主语的是一个从句,相当于all the thing that we have to do,从句在人称上相当于 it

There is ____(end) homework to do when we are going to have all we'd have to do to make use of sea water in the world is We do not think that they should have been put to this troub 英语翻译We do what we have to when we fall in love.We say what w We have to consider what to do in situation_______there are "my friend,we all need calm down to think about the question 英语翻译As it is known,when we are in high school,we all have a When do we have to give______our compositions all i have to do is dream 的语法英语翻译All we have to do is toilet train the world and we''ll n we have to be ___ when we do everything. All we have to do is to wait怎样分主谓宾吖