看图，选择正确的图片。
It's cold ____ Beijing.
A. onB. inC. at
It's 9:45. It's time ____ music class.
A. toB. forC. of
Look at the clock, what ____ is it?
A. classB. timeC. can
It's 10 o'clock. It's time ____ go to school.
A. toB. forC. of
在B栏里找出A栏的正确答句，把字母编号写在题前的括号里。（每小题2分，共10分）( )How much is it?A. It’s four yuan.
( )What colour is it?B. It’s rainy today.
( )Are the potatoes expensive?C. It’s nine o’clock.
( )What’s the weather like today? D. Yes, they are.
( )What time is it now?E. It’s brown.