This shirt is ________ big.
Is this your T-shirt? ______. A. Yes, it is.B. No, they aren’t.C. Yes, they are.
Can I wear my T-shirt?_____ A. No, you can't.B. Yes, you can't.C. No, you can.
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