____ of the boys in Class 4 are playing games.
| A．All | B．Each | C．The both | D．None |
My mother_______ if she ________her work this week．
| A．comes back；finishes |
| B．comes back；will finish |
| C．will come back；finishes |
| D．will come back；will finish |
.---My brother fell off his bike and hurt himself. ---.
| A．Don’t worry | B．It doesn’t matter |
| C．I’m sorry to hear that | D．He should be careful |
Environment(环境) is very________，but you don’t understand the_______ of it，you always drop litter everywhere．
| A．important，important | B．important，importance |
| C．importance，importance | D．importance，important |
He spent as much money as he could _______ a new iphone6.
| A．buy | B．buying |
| C．to buy | D．Bought |
The teacher told me _________when I left the classroom.
| A．lock the door | B．to lock the door |
| C．to knock at the door | D．knock at the door |