PHẦN 3: ĐỀ ÔN LUYỆN THI PRACTICE TEST 6

The elementary means of communicating with other people…………messages by voice. A. are conveying B. is transferring C. is conveying D. are transferring

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The elementary means of communicating with other people…………messages by voice.

are conveying

is transferring

is conveying

are transferring

Giải thích

Chọn C