Edward, you play so well. But I ______ you played the piano.
| A．didn’t know | B．hadn’t known |
| C．don’t know | D．haven’t known |
.
The child walked quietly to the bird. ________into the forest when he was about to catch it.
| A．Flew it away | B．Away flew it | C．Flew away it | D．Away it flew |
.
You spent 300 yuan on a pair of cotton gloves. Such a pair of cotton gloves___________be worth so much.
| A．mustn't | B．wouldn't | C．can't | D．needn't |
.
With more forests being destroyed, huge quantities of good earth___________ each year.
| A．is washing away | B．are being washed away |
| C．are washing away | D．is being washed away |
.
It is reported that the United States uses___________ energy as the whole Europe.
| A．as twice more | B．twice more as | C．twice much as | D．twice as much |
.
In peace, too，the Red Cross is expected to send help___________ there is human suffering.
| A．whoever | B．wherever | C．whatever | D．however |