A. It is difficult to get a clear picture of space because of the dusty air. B. The dusty air ——青夏教育精英家教网—

摘要： A. It is difficult to get a clear picture of space because of the dusty air. B. The dusty air difficult to get a clear picture of space.

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句型转换

It is difficult to get a clear picture of space because of the dusty air.

The dusty air ________ ________ difficult to get a clear picture of space.

句型转换

It is difficult to get a clear picture of space because of the dusty air.

The dusty air ________ ________ difficult to get a clear picture of space.

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