题目内容
--- Did you ask the guard _______ happened?
--- Yes, he told me all _______ he knew.
--- Yes, he told me all _______ he knew.
| A.what; that | B.what; what | C.which; which | D.that; that |
A
what happened是宾语从句. all 之后that he knew是定语从句.先行词是all,所以关系代词只能用that.
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