The baby is playing______ the yellow key.

A．with

B．to

C．at

选词填空。
at,   by,   in,   on,   for
1.I wanted to buy a gift __________ you.
2. Li Ming had fun __________ Beijing.
3. Danny was __________ the Palace Museum.
4.We were __________ the train to Beijing.
5.We went there __________ bus.

What would you do ____?( )

A．at your spare time	B．in your spare time
C．on your spare time	D．to your spare time

We play basketball _________ four o’clock this afternoon. (   )

A．in

B．at

C．on

填入适当的介词，完成句子
1. Alice usually goes ________ the cinema ________ her parents.   
2. The headmaster will wait ________ the entrance.   
3. What do you usually do ________ the Open Day?   
4. Let's look ________ the English Club noticeboard.   
5. ________ 5:20 they will start their party. 
6. —Who are you waiting ________?—Mr Black. I have something important to tell him.   
7. Let's meet our teacher ________ the school gate.