Above one third of the population in Beijing and Shanghai      netizens, but in poorareas, only three or four percent        online.
#85897
A
is, is
B
are, are
C
is, are
D
are, is
推荐题目
------ Why does the lake smell terrible? ------ Because large quantities of water _________.
#85918
A
have been polluted
B
has polluted
C
have polluted
D
has been polluted
---There______ a concert this evening.---Yes.Exciting news.
#43613
A
are going to be
B
is going to be
C
is going to have
D
will have