2 . The scientist has a lot of experience with ignorance, doubt and ______, and this experience is ______ great ______.
科学家经常会经历无知，怀疑和不确定，而这种经历非常重要。

3 . ______ immediately ______ ______ her that these were signs of an approaching tsunami.
她立刻意识到这是海啸来临的征兆。

4 . ______ ______ such success, Fiona hopes to ______ more users through other forms of new media.
已经取得了如此成功，Fiona希望通过其他新媒体形式吸引更多的用户。

5 . Even in winter the roadsides were places of beauty, ______ countless birds came to ______ ______ the berries.
即使在冬天，路边也是美丽的地方，无数的鸟儿来这里吃浆果。

6 . The ______ of Tu and her team finally ______ ______.
屠呦呦和她的团队的努力终于有了回报。

8 . 桑德拉决心成为一名医生，她的坚持不懈终于获得了回报。
Sandra was determined to become a doctor and her persistence________________