Here is the English grammar book which, ______ I have told you, will help to imp

游客2024-10-24  10

问题 Here is the English grammar book which, ______ I have told you, will help to improve your English.

选项 A、which
B、as
C、that
D、like

答案 B

解析 定语从句。非限定性定语从句作插入语,而且先行词为which,故定语从句的引导词只能用as。
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