1 . The company should take________ (effect) measures to solve the problem. (所给词的适当形式填空)

2 . There are________ (variety) butterflies and flowers in the attractive garden. (所给词的适当形式填空)

3 . The kind of machine has both ________ (strong) and weaknesses. (所给词的适当形式填空)

4 . Under the________ (extreme) tough conditions, she became increasingly strong. (所给词的适当形式填空)

5 . ________ (addition), we select our teachers for their engaging personalities. (所给词的适当形式填空)

6 . The job calls for a sense of ________ (responsible) and great patience. (所给词的适当形式填空)

7 . It’s a matter of time to find a ________ (suit) assistant to take the place of him. (所给词的适当形式填空)

8 . You need to do some ________ (challenge) problems before you become an expert in this field. (所给词的适当形式填空)

9 . We were treated to an ________ (exhibit) of the footballer’s speed and skill. (所给词的适当形式填空)

10 . Out of________ (curious), he opened the wooden door with all his strength. (所给词的适当形式填空)