I.单项选择。(25分)
( )1.—________did you go________vacation?
—We went to the countryside.
A．What，for B．When，on C．Where，on
( )2.—________was your summer vacation?
—It was great.I went to the park with my friends.
A．What B．How C．When
( )3.—Did you go to Central Park?
—________.
A．Yes，he is B．Yes，I did C．No，she does
( )4.I'm free today.I have________to do.
A．something B．anything C．nothing
( )5.Keep ________ down the street and you'll find the shop.
A．walks B．walking C．to walk
