100 câu trắc nghiệm Thì quá khứ hoàn thành tiếp diễn (Past Perfect Continuous) có đáp án
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I just heard about the accident. ________ been working all night?

54/100

I just heard about the accident. ________ been working all night?

The driver had

Had the driver

Had the driving

Had the driven

Giải thích

Chọn đáp án: B