His friends did they could him out of difficulty.A.

His friends did ____ they could ____him out of difficulty.A.all what; to help B.all; to help
same rule,please give your answer and explain why.thanks :D

晨睡 1年前已收到4个回答举报

亚蔬六号幼苗

共回答了14个问题采纳率：100% 举报

B
定语从句的先行词是all时,引导词用that,排除A

1年前

liciaoab 幼苗

共回答了1613个问题举报

all to help

1年前

zhangray 幼苗

共回答了1个问题举报

B
did all (that) they could to do something
你问我为什么？固定搭配，不知道啊，反正是这样用的

1年前

zuqing76 幼苗

共回答了7个问题举报

B他爸做了他能做的去帮他建个实验室. did 后面少了宾语，WHAT HE COULD 可以做为一个短语做宾语选B；意思是尽自己所能。他爸爸尽自己所能为

1年前

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