题目内容：

根据句意，用所给单词的适当形式填空

1.I doubt whether the song is worth _______(listen) to .

2.The scientist has devoted his life to        (build)his hometown.

3.Mary _____(prefer)milk to coffee when she was young.

4.—We’ve missed the last bus!

—I’m afraid we have no ________(choose) but to take a taxi.

5.After working for over ten years ,he became the CEO of a company only in his         (forty)