MODULE 20- Đại từ nhân xưng, Đại từ sở hữu và Đại từ phản thân

_______ with his work yesterday? - John did. A. Who did Peter help B. Who helped Peter C. Whom did Peter help D. Who did helped Peter

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_______ with his work yesterday? - John did.

Who did Peter help

Who helped Peter

Whom did Peter help

Who did helped Peter

Giải thích

Chọn đáp án B