5000 câu trắc nghiệm Tiếng Anh 9 có đáp án - Phần 63
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_______ we had got ton the plane, it started to rain. a. If b. While c. Before d. As soon as

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_______ we had got ton the plane, it started to rain.

If

While

Before

As soon as

Giải thích

Chọn đáp án D