单项选择题

Neptune is about thirty times as far from the Sun（）

A. is the Earth
B. the Earth is
C. is as the Earth
D. as is the Earth

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单项选择题

Why do we feel less stressful when waking from bad dreams（）

A. In dreams we solve those problems.
B. After dreaming we forget our problems.
C. After dreaming we have a clear mind.
D. It gives us ways to deal with the problems.

单项选择题

Talking about that is useless, （） is familiar to me.

A. which fact
B. the fact of which
C. fact
D. that fact