－Linda was just going out shopping ________ the telephone rang．

A．while

B．when

C．after

D．because

－Our teacher told us that the moon ________ around the earth．

A．traveling

B．travel

C．travels

D．traveled

－He buys ________ books, but he doesn't read them at all．

A．hundred of

B．hundreds of

C．two hundreds

D．two hundreds of

－To keep safe, everyone ________ wear a seat belt(安全帶)in a car．

A．is suppose

B．are supposed to

C．is supposed to

D．are supposed

－She asked me ________ go to the park．

A．how she can

B．how she could

C．how can she

D．how could she

－My little brother was really ________ at the ________ news．

A．surprised; surprised

B．surprised; surprising

C．surprising; surprised

D．surprising; surprising

－The flight to Beijing will ________ in one hour．

A．take away

B．take part

C．take off

D．take with

We should try our best to help the animals ________．

A．in dangerous

B．danger

C．in danger

D．dangerous

Uncle Wang is ________ the barber's at the moment, so you have to talk to him ________ the phone．

A．in; in

B．at; on

C．on; at

D．at; at

My brother is studying in ________ university in America; he wants to be ________ astronaut in the future．

A．a; a

B．a; an

C．an; a

D．an; an