It is difficult for you to ______ what will happen in space without gravity.
| A．depend on | B．have some idea of | C．keep from | D．equip with |
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 |
Mr. Smith has bought a new house in the country, around _____ some green trees.
| A．which is | B．it is | C．which are | D．them are |