Bộ 20 đề thi Tiếng Anh vào 10 có đáp án cực hay (Đề 1)

Moreover, in the past people had to work harder as they did not have (28)……… and machine

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Moreover, in the past people had to work harder as they did not have (28)……… and machine to make their work easier.

rules

ideas

tools

teams

Giải thích

Đáp án C