1．—The window is so dirty.
—I know.It________________(clean) for weeks.
2．All the employees except the manager__________(encourage) to work online at home.
3．The plan must__________(put) into practice as soon as possible.
4．The way the guests__________(treat)in the hotel will influence the evaluation(评价)of their service.
5．Let me begin by__________(tell) you such a story.
6．By__________(review) the old，you can learn something new.
7．Hundreds of jobs__________(lose) if the factory closes.
8．All the tickets__________(sell)out when they arrived.
9．Every year many farmers arrive in Shenzhen for good jobs they__________(promise) before leaving their hometowns.
10．Traditional folk arts like paper cutting__________(exhibit)at the culture show of the 2010 Shanghai World Expo.
