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The reason Mr.Wang didn’t join us was that his wife was ill. [ ] A. which B. why

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The reason Mr.Wang didn’t join us was that his wife was ill. [ ] A. which B. why

The reason ________ Mr.Wang didn’t join us was that his wife was ill.

[]A.

which

B.

why

C.

that

D.

because

试题答案

答案:B

解析:

当先行词为the reason时,定语从句可能用that/why/for which来引导,在本句中,定语从句成分完整,选用why/for which来引导。