My sister is often sick because she doesn't do physical exercise.

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Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

If my sister does physical exercise, she won't often be sick.

If my sister isn't physical exercise, she does sick.

If my sister did physical exercise, she wouldn't often be sick

If my sister wasn't physical exercise, she would do sick.

Giải thích

Đáp án đúng: C

Giải thích: Cấu trúc câu điều kiện loại 2: If S + Ved, S would(not) V

Dịch: Nếu em gái tôi tập thể dục, cô ấy sẽ không thường xuyên bị ốm