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present…to… ________

It ________（花費）eleven hours to fly from Canada to China today.

I hope someone will invent a ________（運輸車）that can send us from one place to another instantly.

We know the sunlight is a kind of ________（能量）that costs little. We should make full use of it.

Many boys like to play ________（滑板）because they think it's fun.

The ________（宇宙飛船）without people have already been to the moon.