My grandpa is generally healthy, but every now and then he ________ a cold．

A．has caught

B．is catching

C．will catch

D．does catch

The boss wanted an assistant with ________ knowledge of French and ________ work experience．

A．a；不填

B．the；the

C．a；the

D．the；不填

My parents often inspire me, “ ________ till you make it．”

A．Fight

B．Fighting

C．To fight

D．Fighted

Most people hold the view that the key to keeping fit is to ________ regularly．

A．give out

B．turn out

C．work out

D．get out

Tommy was planning to buy a car the next week, ________ he ________ enough for a used one．

A．by that time; had saved

B．by which time; had saved

C．by that time; saved

D．by which time; has saved

Go to bed right away．Forget you need to get up as early as you can ________ the early train．

A．catch

B．catching

C．caught

D．to catch

I don't think we'll need any more help to get the project completed on time, but we ________．

A．should

B．could

C．might

D．must

How can I help ________ if people don't read the instructions?

A．it

B．that

C．them

D．this

Thanks for sending my school report for me．It ________ me a trip．

A．avoided

B．appointed

C．spared

D．escaped

So you should try to stay positive, ________ your misfortunes．

A．whenever

B．however

C．whichever

D．whatever