Voluntary work is work that you do not get paid for and

Câu hỏi :

Read the following passage and choose A, B, C, or D to indicate the correct word or phrase that best fits each of the following blanks. Fill in the appropriate word in question 32

A. core

B. primary

C. top

D. essential

* Đáp án

A

* Hướng dẫn giải

Đáp án A

In core: từ tận bên trong

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