Đề thi Tiếng Anh ĐGNL Đại học Sư phạm Hà Nội 2025 có đáp án

Why volunteer in your country with the UN?Would you like to contribute to your own country and work...

6/30

Mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the numbered blanks.

National UN volunteers are (6) ______ assets to the work of the United Nations,

worthless

invaluable

repetitive

trivial

Giải thích

B. invaluable