Please________the window so that we can let the fresh air in．
| A．open |
| B．close |
| C．turn on |
| D．turn off |
When the player finished running, he was out of _____．
| A．breathe | B．breathing |
| C．breath | D．the breath |
_____ energy, shut off the hot water after you take a shower．
| A．Save | B．Saving |
| C．To save | D．Saved |
—Haven’t I told you that you should be home earlier?
—Yes, but I _____home earlier than I usually do．
| A．was coming | B．will come |
| C．came | D．had come |
Students who read a lot can do much better in learning English than_____who don’t ．
| A．this | B．that | C．these | D．those |
—I’m worried about my English．
—_____ harder, _____you will catch up with your classmates．
| A．Working, and | B．To work, or |
| C．Work, and | D．Worked,or |