1 . Some think that a woman’s body cells have a_________(tend) to age more slowly than a man’s. （所给词的适当形式填空）

2 . This great ________________(predict) is coming true. (所给词的适当形式填空）

3 . The new government’s first ___________(挑战) is the economy.(根据汉语提示单词拼写)

4 . Experts say that the most successful weight-loss plans include a well-balanced d_____ and exercise. （根据首字母单词拼写）

5 . We've discussed the unusual form of the book. Now, what about the ________ (内容)? (根据汉语提示单词拼写)

6 . The role will be one of the biggest ___________(挑战)of his acting career. (根据汉语提示填空)

7 . My____(shy) really prevents me from approaching people. (所给词的适当形式填空)

8 . There is evidence that _________ (prohibit) of plastic bags can work. (所给词的适当形式填空）

9 . The f_________ of the heart is to pump blood through the body. （根据首字母填空）