Helen ________(leave)her keys in the office．So she has to wait until her husband comes home．
Ni Ni ________(choose)to act in Zhang Yimou's film, wasn't she?
－Have you ever read a book called Waiting for Anya?
－Who ________(write)it?
The students will go to the zoo if it ________(not be)rainy this Sunday．
Our teacher told us that glass ________(feel)much colder than wood in winter．
The wetlands photo show ________(begin)at 10 a.m．tomorrow．
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It ________(report)that Nanjing will build a theme park for the Youth Olympic before 2014．
Jack, one of my buddies, kept ________(nod)his head as if he completely understood what I said．
Lily misses her grandmother very much because her grandmother ________(not reply)to her last letter yet．
His parents promised that they ________(take)him to travel to Beijing if he did well in the coming exam．