2 . Tu Youyou has devoted her entire life to ______ (science) research into artemisinin. (所给词的适当形式填空)

3 . There is no denying that working out regularly is ______ (benefit) to us. (所给词的适当形式填空)

4 . She felt ______ (羞愧) of making a mess in the bathroom. (根据汉语提示单词拼写)

5 . He ______ (freeze) with terror, totally at a loss what he would do next. (所给词的适当形式填空)

6 . Suffering severe backache, he was far from ______ (impress) in his semi-final against Federer. (所给词的适当形式填空)

7 . So on behalf of the villagers’ benefit, the local government has decided to call for an end to the factories’ ______ (legal) behaviors. (所给词的适当形式填空)

9 . People used to believe that the earth was flat. (英译汉)

10 . The citizens are ________ (access) to the library for free.(所给词的适当形式填空)