104 câu trắc nghiệm Thì quá khứ hoàn thành (Past Perfect) có đáp án
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 _______ you _______ your computer long before it broke down?

83/104

 _______ you _______ your computer long before it broke down?

Did / have

Were / having

Had / had

Have / had

Giải thích

Chọn đáp án: C