问题

The mountains are greener and greener and the water is clearer and clearer.—Sure. Lots of things _________ by our government every year.
A:were done
B:are done
C:have done
D:will do;
B:are done
C:have done
D:will do;
正确答案是:
同类题型
21He is very strict with others, but he is always blind _____ his own shortcomings
edn’t take an umbrella. It isn’t going torain.—Well, I don’t know. It __________ do.
The corridors (走廊) was so narrow that I had to _____myself against the wall to let them pass. [ ]
He is such a strong-willed person thatthere is nothing in the world that can _____ him.