1 . His problems __________ (root) deeply in his childhood experiences. (所给词的适当形式填空)

2 . So far it ________ (confirm) that the meeting will take place next week. (所给词的适当形式填空)

3 . It _________ (prove) that a balanced diet is good for health. (所给词的适当形式填空)

4 . Amy, as well as her brothers, ________ (give) a warm welcome when returning to the village last week. (所给词的适当形式填空)

5 . They spent a whole day ________(search) for their missing son. Finally he ________(spot) sitting in the park. (所给词的适当形式填空)

6 . Mr White is a careful and ________(experience) engineer, so he is often ________ (appoint) to finish some ________ (challenge) tasks.（用所给词的适当形式填空）

7 . Tolkien is __________(认为) as one of the greatest writers of some of the world’s most popular high-fantasy novels. (根据汉语提示单词拼写)

8 . Survivors of the shipwreck ____________________(被救起) by small boats. (根据汉语提示完成句子)

9 . Few details could be _____(辨别) on the photo because it’s too old. (根据汉语提示单词拼写)

10 . A new kind of drug _____(develop) by the scientists and they are hopeful that they will succeed in a couple of months. (所给词的适当形式填空)