15000 bài tập tách từ đề thi thử môn Tiếng Anh có đáp án (Phần 1)

I invited 20 people to my party, some of them are my former classmates. A. invited B. to C. them D. former

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I invited 20 people to my party, some of them are my former classmates.

invited

to

them

former

Giải thích

Đáp án C

Them => whom