He tried to make himself ________ by his students, but he failed.
| A．understand | B．understood |
| C．understands | D．understanding |
Water is very important to us．We can’t live________it．
| A．except |
| B．with |
| C．besides |
| D．without |
They found________difficult to communicate with the boy．
| A．it |
| B．that |
| C．this |
| D．one |
Lucy，come here!I have________to tell you．
| A．anything important |
| B．something important |
| C．important anything |
| D．important something |
Tom________milk，but now he________coffee．
| A．used to drink；is used to drinking |
| B．used to drinking；drinks |
| C．is used to drinking；used to drink |
| D．is used to drink；is drinking |
You________supposed to take them out of the room．
| A．didn’t |
| B．aren’t |
| C．don’t |
| D．can’t |