当你要离开的时候会对别人说:A.Hi!B.Glad to meet you.C.Goodbye!
They _____ too expensive. A. amB. isC. are
How much ____ the yellow shoes? A. amB. isC. are
Are they nice? Yes, _____. A. it isB. they areC. I am
How much____ that skirt? A. amB. isC. are
Can____ help you? A. IB. myC. me