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

Before 1975 in South Viet Nam, there 3 state universities built in cities of Hue, Saigon, Can Tho.

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Before 1975 in South Viet Nam, there                        3 state universities built in cities of Hue, Saigon, Can Tho.

were

would be

was

used to be

Giải thích

Chọn đáp án A