Betty couldnt come to the party, _________ was a pity

Câu hỏi :

Betty couldn't come to the party, _________ was a pity.

A. where

B. who

C. which

D. that

* Đáp án

C

* Hướng dẫn giải

"which" làm chủ ngữ thay cho cả vế trước.

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