Bộ 3 Đề kiểm tra Unit 4 - Tiếng anh 10 iLearn Smart World có đáp án (Đề 2)

How long has Edward been an environmentalist? → When.............................

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Rewrite the following sentences without changing the meaning. Use the given word(s) if any.

How long has Edward been an environmentalist?

→ When.............................

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Giải thích

did Edward start working?/to work as an environmentalist?/did Edward become an environmentalist?