1 . A change, no matter _________ badly it is needed, doesn’t just happen. It takes people like us to make it possible. (用适当的词填空)

2 . I can’t figure _________ how to do this. It’s really challenging for me. (用适当的词填空)

3 . Only when you keep totally _________________ (focus) will you be able to master the technique. (所给词的适当形式填空)

4 . With the help and encouragement of my teachers and classmates,my language skills improved _________________ time. (用适当的词填空)

5 . Nels entered college at the age of eighteen, ________(graduate) four years later as the head of his class. (所给词的适当形式填空)

6 . Our high school has created a platform ________ individuality is greatly respected. (用适当的词填空)

7 . Every important occasion ________ our classmates hit the jackpot is marked with our applause. (用适当的词填空)

8 . A team of researchers carried out a huge experiment ________ (concern) 218 cities in 39 countries. (所给词的适当形式填空)

9 . Great contributions _________________ (make) by Mr. Wang to the company in the past ten years. So he deserves the praise. (所给词的适当形式填空)

10 . I showed great concern for those people ________ lives were greatly affected by the flood. （用适当的词填空）