5. 我们商店有许多种不同款式的时尚的靴子供你挑选。

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4. 每个学生家里将会有一台电脑并与星际之间的电脑网络连接。

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3. 你能帮助我学习英语吗？

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2. 你认为什么是最不重要的？

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1. 空气罐可以为航天员提供数小时的空气。

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10. Can you imagine ______ (live) on the other planet in the future?

9. By the end of yesterday, he ______ (write) to him five times.

8. This maths problem is too difficult for me ______ (work) out.

7. By next year, we ______ (learn) 2,000 English words.

6. The special boots can prevent us from ______ (float) in the air.