Tổng hợp 20 đề thi Tiếng anh ôn thi vào 10 có đáp án - Đề 9
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Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. 5. They explained__________him how they should operate the machine

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Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

They explained__________him how they should operate the machine

to

with

for

about


Giải thích

Đáp án A