Trắc nghiệm Chuyên đề 3: Multiple choice (vocabulary and grammar) có đáp án

They didn’t stop until 11.30 pm when there was a power cut.

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They didn’t stop                     until 11.30 pm when there was a power cut.

to sing and dancing

singing and dance

singing and dancing

to sing and dance

Giải thích

Chọn đáp án C