Enough______ to stop the forest______ since the 1980’s.
#104373
A
has been done;be cut down
B
has done;cutting down
C
has been done;being cut down
D
had done;from being cut down
推荐题目
Although he in America for a long time, he’s never regretted his making his mind to return to his own country.
#103172
A
stayed
B
was staying
C
has stayed
D
had stayed
—By the way，have you moved into the new house?—Not yet．The walls ________．
#99379
A
were painted
B
are being painted
C
are painted
D
are painting
No agreement has been reached as both sides refused to ________ at the meeting held yesterday evening.
#99800
A
give out
B
give in
C
give up
D
give off
I____ her to work hard at English, but she didn’t listen to me.
#102560
A
persuaded
B
tried to persuade
C
managed to persuade
D
suggested
They ______ on the program for almost one week before I joined them, and now we _____on it as no good results have come out so far.
#104931
A
had been working; are still working
B
had worked; were still working
C
have been working; have worked
D
have worked; are still working