--– _____shirt is this? ---It’s ______.
你想知道有多少把椅子,可以说:
I go to bedten. A. in B. on C. at
Are they teachers? , they are. A. Yes B. No C. Sorry
What are they? They are. A. workers B. doctor C. doctor’s
My nameBetty. A. is B. am C. are