This means going back to the place where we left the family ____ in a tree the night before.
| A．to sleep | B．to be sleeping | C．slept | D．sleeping |
Walmart,which is one of the largest American supermarket chains,___some of its stores open 24 hours on Mondays through Saturdays
| A．keeps |
| B．keep |
| C．have kept |
| D．had kept |
Grace doesn’t want to move to New York because she thinks if she___there,she wouldn’t be able to see her parents very often
| A．lives |
| B．would live |
| C．has lived |
| D．were to live |
—I remember you were a talented pianist at college.Can you play the piano for me？
—Sorry,I___piano for years
| A．don’t play |
| B．wasn’t playing |
| C．haven’t played |
| D．hadn’t played |
___fire,all exits must be kept clear
| A．In place of |
| B．Instead of |
| C．In case of |
| D．In spite of |
You’d better take something to read when you go to see the doctor___you have to wait
| A．even if |
| B．in case |
| C．as if |
| D．in order that |