(Viên chức Mầm non) 1128 câu trắc nghiệm Tiếng Anh A2 có đáp án - Phần 21
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In the past, the trip ____________very rough and often dangerous, but things _________a great deal in the last hundred and fifty years

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In the past, the trip ____________very rough and often dangerous, but things _________a great deal in the last hundred and fifty years

was- have changed

is- change

had been- will change

has been- changed

Giải thích

Chọn đáp án A