PRACTICE TEST 1- Đại từ nhân xưng, Đại từ sở hữu và Đại từ phản thân
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The musician ______ the guitar for about an hour. A. is playing B. has been playing C. will be playing D. was playing

2/100

The musician ______ the guitar for about an hour.

is playing

has been playing

will be playing

was playing

Giải thích

Chọn đáp án B