Bộ 3 Đề kiểm tra Unit 9 - Tiếng anh 10 iLearn Smart World có đáp án (Đề 3)

Remember to leave the building quickly when you hear ______________.

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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.

Remember to leave the building quickly when you hear ______________.

boat trips

elevator call

the fire alarm

fire alarming

Giải thích

Chọn C