MODULE 13- Đại từ nhân xưng, Đại từ sở hữu và Đại từ phản thân
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Tim asked Sarah ________ English so far. A. she had been learning how long B. how long was she learning C. how long she has been learning D. how long she had been learning

41/50

Tim asked Sarah ________ English so far.

she had been learning how long

how long was she learning

how long she has been learning

how long she had been learning

Giải thích

Chọn đáp án D