题目内容

13. Only by        (explore) the unknown world continuously can we have discoveries and inventions.

13. exploring

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6. 在现实中，我们应该向他学习：只要我们对我们所做的有信心，就不要介意别人说什么。

4. Henry can’t attend the party        (hold) at Tom’s house at present because he is preparing the speech at the party       (hold) at Marie’s house tomorrow.

1. — Shall we go out this weekend?

—Oh,with all this work        (do) ,  I don’t know if I’ll have time to go out.

8. The traffic rule says young children under the age of four and        less than 40 pounds must be in a child safety seat.

3. 如果你的眼睛感到疼痛，做眼保健操可以缓解你的视力疲劳。

4. If there is a lot of work        (do) ，I’m happy to just keep on until it is finished.

1. They use computers to keep the traffic       (run) smoothly.

3. It was not until he got home      he remembered leaving the door key where he had played basketball with his classmates.

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