Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 có đáp án (Đề 7)

________ to the national park before, Sue was amazed to see the geyser. A. Being not B. Not having been C. Not being D. Having not been

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________ to the national park before, Sue was amazed to see the geyser.

Being not

Not having been

Not being

Having not been

Giải thích

Chọn đáp án B