－Why did the police ________ the crowd?

－Because the president's car ________ in the street．

A．break down; broke down

B．break up; broke up

C．break down; broke up

D．break up; broke down

－Can you help me to repair the motor now?

－Sorry．I'm too busy and haven't a minute to ________．

A．lose

B．save

C．waste

D．spare

－Has Ingrid handed in her paper yet?

－I'm not sure．She ________ on it last week．

A．was working

B．has worked

C．worked

D．had worked

－They don't have much in their house yet．

－________ they're planning to live here only until Bob gets his degree, they don't want to buy much furniture．

A．Although

B．While

C．Since

D．As long as

－Why didn't you ring me up?

－I would have, but I ________ your telephone number．

A．have forgotten

B．would have lost

C．forgot

D．had lost

－How long ________ in Tangshan?

－For just the weekend．I was back shortly after the meeting．

A．did you stay

B．have you stayed

C．were you staying

D．are you staying

－Can I get you a cup of tea?

－________．

A．That's very nice of you

B．With pleasure

C．You can, please

D．Thank you for the tea

－You seem to be familiar with this city!

－I ________ English in a high school here for three years．It' s great to be back!

A．have taught

B．have been teaching

C．had taught

D．taught

－Are you coming to my wedding ceremony?

－________．I can't miss your prettiest and happiest moment．

A．I'm afraid I can't．

B．You've welcome．

C．No way!

D．You bet!

－Thanks for the ________ you did me to move away the stone．

－That's all right．

A．favour

B．good

C．trouble

D．kindness