1 . First of all, you need to________ (计算) how much time the task will take. (根据汉语提示单词拼写)

2 . If you are nervous, try to take a deep breath to c______ down. (根据首字母单词拼写)

3 . Such wonders as a space shuttle launch or astronauts walking on the moon are incredibly exciting and inspiring ________(witness), and these moments shape children’s lives forever. （所给词的适当形式填空）

4 . The most important thing is____________ (negotiate) with them about the future of the plant. (所给词的适当形式填空)

5 . Normally, they will first send trained nurses to ________ (评估) each patient’s situation. (根据汉语提示单词拼写)

6 . His dearest wish is ________ (see) his grandchildren again. (所给词的适当形式填空)

7 . China needed its own powerful air force to protect and ________(防卫；保卫) themselves against knife attacks. (根据汉语提示单词拼写)

8 . I tend __________ (go) to bed late and get up early in summer. (所给词的适当形式填空)

9 . The mother is ________ for the spoiled child.

A．blame to

B．to blamed

C．to blame

D．blame

10 . The house is large and difficult to __________ (维修，保养). (根据汉语提示单词拼写)