Trắc nghiệm tổng hợp Tiếng anh có đáp án 2023 (Phần 1)

It was not so long ago that we dealt with colleagues through face-to-face (1. INTERACT) and with counterparts and customers by phone or letter.

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It was not so long ago that we dealt with colleagues through face-to-face (1. INTERACT) ______ and with counterparts and customers by phone or letter.

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Giải thích

Đáp án: 1. interaction