1 . Only when you try your best can you have a chance ________(become) a promising person. (所给词的适当形式填空)

2 . We have four reading passages____________ (complete) in the coming holiday. (所给词的适当形式填空)

3 . You must be patient and persistent if you are____________ (succeed). (所给词的适当形式填空)

4 . But it was almost impossible to decide where ________ (look) because there are so many small islands and the ocean is so large. (所给词的适当形式填空)

5 . Your task today is________ (wash) the curtains. （所给词的适当形式填空）

6 . My mission was________ (relieve) Emma, a Canadian specialist in infectious diseases at the end of her posting.(所给词的适当形式填空)

7 . —Why do you look sad?
—There are so many problems remaining ___________.（settle）

8 . I’m glad it’s almost summertime — I can’t wait________(go) swimming!（所给词的适当形式填空）

10 . My only aim is_________ (represent) our country at the Olympics. (所给词的适当形式填空)