800 câu trắc nghiệm Điền từ Tiếng Anh có đáp án - Phần 19

In speech, the coding system is the language like English or Spanish; the convention that one person speaks at a time may seem too obvious to mention. In fact, the signals (3)_____ in convers

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In speech, the coding system is the language like English or Spanish; the convention that one person speaks at a time may seem too obvious to mention. In fact, the signals (3)_____ in conversation and meetings are often (4)_____

Informal

non–verbal

verbal

formal

Giải thích

B là đáp án đúng