Large quantities of water, as well as some other timely help including a medical team ___since the serious drought hit Yunnan Province. 
#101955
A
has offered
B
had been offered
C
have been offered
D
is offered
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