—Tom, it seems that you haven’t cleaned your bedroom the whole week .
—You didn’t come in around 10 yesterday morning; I ________ it .
| A．cleaned | B．have cleaned | C．was cleaning | D．had cleaned |
. Stand over there ________ you’ll be able to see it better.
| A．or | B．while | C．but | D．and |
— Have you moved into the new house?
— Not yet. The rooms ________.
| A．are painting | B．are being painted | C．are painted | D．are being painting |
Living on Mars isn’t ________ as it sounds.
| A．as strange an idea | B．as idea strange |
| C．as a strange idea | D．as an idea strange |
Visitors ________ take an animal or any other item prohibited by the Expo Bureau to the Expo Park.
| A．needn’t | B．may not | C．mustn’t | D．will not |
One way to understand thousands of new words is to gain ________ good knowledge of basic word formation.
| A．/ | B．the | C．a | D．one |