It is reported that many a new house ____ at present in the disaster area in Gansu Province.
#100529
A
was being built
B
were being built
C
is being built
D
are being built
推荐题目
—The windows are dirty.—I know. They _________ for weeks.
#102514
A
haven’t cleaned
B
didn’t clean
C
weren’t cleaned
D
haven’t been cleaned
—I’m going to the States.—How long ________you________ in the States?
#100071
A
are; stayed
B
are; staying 
C
have; stayed 
D
did; stay