PHẦN 3: ĐỀ ÔN LUYỆN THI PRACTICE TEST 8

The show was successful mainly because they………….for months. A. had rehearsed B. have rehearsed C. has been rehearsing D. had been rehearsing

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The show was successful mainly because they………….for months.

had rehearsed

have rehearsed

has been rehearsing

had been rehearsing

Giải thích

Chọn D