It ______last week that the haze(雾霾) in Beijing caused many problems.
#56008
A
reports
B
reported
C
is reported
D
was reported
推荐题目
My friend’s flight had taken off _________ I got to the airport to see him off.
#56042
A
while
B
after
C
before
D
until
—We can’t be successful ________ we keep working hard.—I agree with you.
#56381
A
if
B
unless
C
because
D
when