_______, Sharon couldn’t find her lost wallet. 

It’s the third time that Li Ming has been to Xi’an , _______?

__________at the door before you enter the office，or you’ll be considered impolite

Last night on my way home I saw an old lady driving a BMW car at __________I thought was a dangerous speed.

Thanks to the work of UNICEF(联合国儿童基金会). Otherwise many children 　　　　 the chance of living a good life.

The computer was used in teaching. As a result, not only_________, but students became more interested in the lessons.

Richard __________ injured in the car crash，but I didn’t stop him driving after he drank some beer．

-- Why not make a call to Jenny right now?
-- No，we’d better not．It’s 3：00 a.m. in London．He is likely __________．

It’s a common scene in the film Tangshan Earthquake that families cry helplessly over _____ is left of their homes.

Andy was crying in his room just now，but he wouldn’t tell me_______ made him so sad.