—Is the letter from your mother?
—Yes.But she ________the letter herself，because she doesn’t even know one word.
| A．needn’t have written | B．can’t have written |
| C．might not have written | D．should not have written |
With more forests being destroyed, huge quantities of good earth ____ each year.
| A．is washing away | B．is being washed away |
| C．are washing away | D．are being washed away |
-What do you think is the difference between ____ man and ____ woman?
-I don’t think there’s any difference.
| A．the; the | B．a; a | C．不填；不填 | D．a; the\ |
-What do you think the _____ should do first?
-They should learn to take ______ as well as share rights in life?
A. grown-up; responsibility
B. growns-up; responsibility
C. grown-ups; responsibilities
C. growns-ups; responsibilities
It takes ______ diligence to learn all the subjects well. It takes brains, too.
| A．other than | B．less than |
| C．more than | D．rather than |
---Is your uncle Tom a soldier?
--- No, but he once _____ in the army for 4 years.
| A．served | B．is serving | C．has served | D．had served |