Bộ 5 đề thi cuối kì 1 Tiếng Anh 9 Friends Plus có đáp án - Đề 1
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Expenses to operate drone delivery service have proved to be much more expensive than vehicle transport services. True B. False

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Expenses to operate drone delivery service have proved to be much more expensive than vehicle transport services. 

True

False

Giải thích

B là đáp án đúng