30 đề luyện thi Đại Học môn Tiếng Anh cực hay có lời giải (Đề số 30)
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Men and women in the Peace Corps work with people in the developing countries to help them

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Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction.

Men and women in the Peace Corps work with people in the developing countries to help them improving their living conditions.

work

developing

improving

living

Giải thích

Đáp án là C

improving => (to) improve. Cấu trúc: help someone (to) do something