请在第____处填上正确答案。

请在第____处填上正确答案。A．There have been many attempts to redesign the periodic table s

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What is NOT the purpose of innovations that use satellite t

What is NOT the purpose of innovations that use satellite tracking and remote c

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Building that railway was very difficult and involved （　　）te

Building that railway was very difficult and involved （　　）ten tunnels.A．dig B．ha

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It’s necessary （　　）the dictionary immediately.

It’s necessary （　　）the dictionary immediately.A．that he will return B．that he re

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She left the reception early because she （　　）get up early th

She left the reception early because she （　　）get up early the next morning.A．nee

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