10 câu trắc nghiệm Thì tương lai hoàn thành tiếp diễn (Future Perfect Continuous) có đáp án
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She'll still be groggy. She ________ undergoing surgery for three hours.

10/10

She'll still be groggy. She ________ undergoing surgery for three hours.

will has been

will have been

will be have

Giải thích

Chọn đáp án B