What did you do _______ weekend ?
Are those your shorts?_____. A. Yes, it is. B. No, it isn’t. C. No, they aren’t.
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. on B. in C. at
It's 9:45. It's time ____ music class. A. to B. for C. of