1 . Tai Chi________ (arise) from China. (所给词的适当形式填空)

2 . As time went by, Jeremy ________________ (behave) better and better and smiles often appeared on his face. (所给词的适当形式填空)

3 . During her film career, she ________ (acquire) a reputation as a strong­willed, outspoken woman. (所给词的适当形式填空)

4 . He ________ himself to working day and night. His ________ won him a great reputation. (commit) (所给词的适当形式填空)

5 . The ________________atmosphere in the room greatly ________________me，which brought me much ________________．(please) (所给词的适当形式填空)

6 . A small percentage of the students _______ (be) from the countryside. (所给词的适当形式填空)

7 . The percentage of women engineers ______ (be) small. (所给词的适当形式填空)

8 . The two scientists _________(click) the button and observed closely,_________ (chat) about the progress they had made. (所给词的适当形式填空)

9 . Ultimately, I was introduced to a brochure about trees we usually see in life, which _________ (benefit)me a lot.(所给词的适当形式填空)

10 . I ________________ him not to skate on such thin ice, but he ignored my________________.(warn) (所给词的适当形式填空)