Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 năm 2023 có đáp án (Đề 4)

______ he failed in the entrance exam caused his family much sadness. A. Which B. That C. The thing D. What

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______ he failed in the entrance exam caused his family much sadness.

Which

That

The thing

What

Giải thích

Chọn B