It's ________ in spring(春天)．
A．cool B．warm C．cold
—Shall we go to the zoo?—________
A．That's all right. B．OK! C．Thanks.
I like apples，how ________ you?
A．about B．are C．is
—Let's go to the park.—________．
A．Thank you B．Excuse me C．Great
—What's this?—________
A．I am a duck. B．It's a cat. C．You're a boy.