He ________ 25 yuan buying this new book yesterday afternoon．

A．spent

B．cost

C．took

D．paid

It's time for supper now．Let's________it．

A．stop having

B．stop to have

C．to stop to have

D．stopping to have

－________have you been learning to swim?－Half a year．

A．How long

B．How often

C．How far

D．When

－________ did you start studying English?－Five years ago．

A．When

B．How long

C．How often

D．What

The room was dark, ________ I turned on the lights．

A．and

B．or

C．but

D．so

When they went into the park, they saw someone ________ Chinese Kongfu．

A．plays

B．played

C．to play

D．playing

Tomorrow is Sunday．Jim will go hiking with his friends if it ________．

A．isn't rain

B．doesn't rain

C．won't rain

D．don't rain

－Lucy is doing her homework．－Let's ask Lily ________．

A．but

B．except

C．instead

D．instead of

The radio is too loud．Will you please ________?

A．turn it down

B．turn it on

C．turn off it

D．turn it up

We can do a lot to stay healthy．________, we should eat a balanced(平衡的)diet．

A．At a time

B．In fact

C．First of all

D．All together