1 . At some time in the past Yellowstone must have blown up with a ________ (violent) far beyond the scale of anything known to humans. (用所给词的适当形式填空)

2 . She wants a job that gives her more ______(responsible). (所给词的适当形式填空)

3 . It is our ________ (responsible) as scientists to declare the value of science. (所给词的适当形式填空)

4 . To the ___________ (astonish) of the public, up to now, the government hasn’t reacted to the problem. (所给词的适当形式填空)

5 . The past years have witnessed the sharp decrease in the number of whales. Consequently, experts are trying to save the whales from ______ (extinct). (所给词的适当形式填空)

6 . I hope that the expert will offer me some successful learning ______ (strategy). (所给词的适当形式填空)

7 . After a short ____________ (expose) to sunlight, his skin began to turn red. (所给词的适当形式填空)

8 . What points can be raised in ___________(defend) of this argument? (所给词的适当形式填空)

9 . Now our government calls on (号召) us to live a low-carbon life. Of course, we should make a _________ (respond) to it actively. (所给词的适当形式填空)

10 . He was a poor ___________ and can't find a job until now. (perform) (所给词的适当形式填空)