Bộ 5 đề thi cuối kì 1 Tiếng Anh 9 Friends Plus có đáp án - Đề 1

One of the main reasons for the success of music therapy is that it helps (Q29) to regulate / regulating our heart.

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One of the main reasons for the success of music therapy is that it helps (Q29) to regulate / regulating our heart.

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Giải thích

to regulate