Chuyên đề 9: Hình thức phân từ
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:_______ all the papers already,Sarah put them back in the file. A. To have photocopied B. To photocopy C. Photocopying D. Having photocopied

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_______ all the papers already,Sarah put them back in the file.

To have photocopied

To photocopy

Photocopying

Having photocopied

Giải thích

Chọn D