—Who is this boy?
—Sorry, I .
| A．not know | B．know not |
| C．don’t know | D．not do know |
Our teacher is standing________ the blackboard.
A. in the front of B. in front C. in front of
---______ in your purse?
--- There are some pictures, a key and some money.
A. What’s B. What’re C. Where’s
Ann is a good student. She _____gets up early and is______ later for school.
A. never, never B. always, always C. always, never
--- _____ does your father usually go to work?
---By car.
A. How B. What C. How often
-What is your father doing now?
-He ________ the room.
| A．cleaned | B．cleans | C．have cleaned | D．is cleaning |