15000 bài tập tách từ đề thi thử môn Tiếng Anh có đáp án (Phần 1)

-“Is swimming under water very difficult?” -“No, it’s just a matter …………………… able to control your breathing.” A. to be B. of being C. that you are D. being

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-“Is swimming under water very difficult?”

-“No, it’s just a matter …………………… able to control your breathing.”

to be

of being

that you are

being

Giải thích

Đáp án B

a matter of st: vấn đề về