Apples are sweet _______ fall. A. on B. in C. at
My coat ____ old. A. am B. is C. are
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