102 câu trắc nghiệm Thì quá khứ tiếp diễn (Past Continuous) có đáp án
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 I _______ on my computer when it suddenly _______.

76/102

 I _______ on my computer when it suddenly _______.

played / crashed

was playing / was crashing

played / was crashing

was playing / crashed

Giải thích

Chọn đáp án: D