10 câu trắc nghiệm Thì tương lai hoàn thành tiếp diễn (Future Perfect Continuous) có đáp án
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They'll be exhausted by dinner. They will have been _____ hockey for seven hours.

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They'll be exhausted by dinner. They will have been _____ hockey for seven hours.

playing

played

play

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Chọn đáp án A