Đề kiểm tra 45 phút Tiếng Anh 9 Học kì 1 có đáp án (Đề 2)

She couldn’t join us because she was busy

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She couldn’t join us because she was busy.

-> She was busy, so……………….........................................

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Giải thích

Đáp án: She was busy, so she couldn’t join us.