15000 bài tập tách từ đề thi thử môn Tiếng Anh có đáp án (Phần 31)

Voluntary work is work that you do not get paid for and usually involves doing things to help other...

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Voluntary work is work that you do not get paid for and usually involves doing things to help other people, especially the elderly or the sick or working on (31)______ of a charity or similar organization.

behalf

basic

account

ground

Giải thích

Đáp án A

On behalf of sb: đại diện

On account of: vì