1 . At present, there are some weak links in the related domestic research. And some key problems still remain ____________ (explore). (所给词的适当形式填空)

3 . The wide world of science is open for young people __________. (explore) (所给词的适当形式填空)

4 . I miss my friends from junior high school, but I believe I will make new friends here and there’s a lot________ (explore) at senior high.(所给词的适当形式填空)

5 . 到达目的地之后，您将有一天的时间来探索这座令人叹为观止的古城。(汉译英)

6 . You can then spend three days ____________the rainforest with a local guide and enjoying the plants and animals ____________ the rainforest.
在接下来的三天里，您可以在当地导游的陪同下，深入雨林进行探索，欣赏雨林特有的动植物。

7 . I miss my friends from junior high school, but I believe I will make new friends here, and there’s a lot to e__________(探索)at senior high. (根据中英文提示填空)

8 . 到达目的地之后，您将有一天的时间来探索这座令人叹为观止的古城。
After ________ your destination, you will have a day to ________ and be ________ by this ancient city.

9 . Parents should encourage their children to spend more free time ________ (explore) the unknown world. (所给词的适当形式填空)

10 . I miss my friends from junior high school, but I believe I will make new friends here, and there’s a lot to ______ at senior high.

A．register

B．exchange

C．impress

D．explore

E．track