—Why didn’t Susan come to school?
—I don’t know. She____ ill.
|
A．could be |
B．may have been |
C．might |
D．must have been |
In front of the gate of the park ____ like an umbrella covering the entrance.
|
A．an old pine tree stood |
B．an old pine tree did stand |
|
C．did an old pine tree stand |
D．stood an old pine tree |
People’s attitudes towards gift giving may from country to country.
|
A．adapt |
B．shift |
C．cover |
D．vary |
The astronaut did many experiments in the spaceship, great help for knowing more about space.
|
A．which we think it is |
B．which we think is of |
|
C．of which we think is |
D．we think which is of |
It has been proved by the fact that watching violence on TV may cause children’s _____ behavior.
|
A．informal |
B．impressive |
C．aggressive |
D．normal |
To his disappointment, the opinion he had stuck out wrong.
|
A．to turn |
B．to turning |
C．to turned |
D．to be turned |
