We           make mistakes when we do things in a hurry.

A. contribute to     B. tend to

C. devote to        D. aim to

 He worked for three days       without sleeping.

A. in addition to    B. spread the word

C. in a row        D. attitude toward

 It's          that the privacy of half of 400 Chinese million mobile phone users is being threatened.

A. admired B. inspired C. justified D. estimated

 This store             round-the-clock service and is welcomed by night workers.

A. disturbs   B. features   C. varies   D. affects

 You can't imagine _______ when they received these nice Christmas presents.

A. how were they excited       B. how excited they were

C. how excited were they       D. they were how excited

 The famous film star, ________ tries to make a comeback, draws a lot of attention.

     A. where              B. when         C. which           D. Who

---- I think it’s going to be a big problem.

---- Yes, it could be.

---- I wonder _________ we can do.

　 A. if　　　　 　　　　　　 B. how　　 C. what　　　　　 　　 D. that

 The Science Museum, _______ we visited during a recent trip to Britain, is one of London’s tourist attractions.

        A．which     B．what  C．that   D．where

 ___we’ll go camping tomorrow depends on the weather .

A If       B Whether     C What       D Which

 Thousands of people have ____________ the new treatment.

A. benefited from   B. benefited  

C. been benefited   D. been benefited from