(2013·安徽高考)This project requires close teamwork. ________ will be achieved unless we work well together.

21st Century is ________ a newspaper. It helps us to improve our English a lot.

—How long do you think the terrible snow will_____ ? —Sorry, I didn’t listen to the weather forecast. 

Varieties of after-class activities _______ to enrich students’ school life are held on Friday afternoon every other week in our school.

In spite of the negative ________, “So Young”, directed by Chinese director Zhaowei, is well-received by the audience and is a real success.