Question

高一英语选择求解

It is our responsiblity to do ＿those who are not as fortunate as we are.
A.all what we can to help B.what we can to help 答案选B 为何不能加all 在前面呢...

Answer 1

all这里是名字，如果用了all句子的前半部分主谓宾结构就全了，后面只能用定语从句了，也就是that（。。。）如果前面没有all，也就是说句子还缺少宾语，所以后面跟上宾语从句what（。。。）

Answer 2

what=all that

Answer 3

all that we can to help 定从
what we can to help宾从

Answer 4

A 也可以 加All 那就是定语从句了 只是A错了
all what we can do to

Answer 5

what we can to do 就是我们所能做的意思，再加all就重复了。

Answer 6

all加在前面可以，
但是要用all that 引导we can to help.