Đề thi Tiếng Anh 9 Thí điểm Học kì 2 có đáp án (Đề 1)

As soon as the spacecraft into space the screw started to observe the sun

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As soon as the spacecraft………….into space, the screw started to observe the sun

has travelled

had travelled

travelled

was travelling

Giải thích

Đáp án: C