. The reason for all the changes being made _______to us yet.
#103486
A
has not explained
B
has not been explained
C
did not explained
D
were not explained
推荐题目
— Tom, could you go to the supermarket with me?— I’d like to, but my homework ______ and I have to hand it in tomorrow.
#101117
A
wasn’t finished
B
won’t be finished
C
hasn’t been finished
D
hadn’t been finished
After school we went to the reading-room to do some reading, only to be told that it .
#101188
A
is decorated
B
was decorated
C
was being decorated
D
is being decorated
He collected information on 1,000 people, whose IQ when they were ten years old.
#102201
A
is tested
B
has tested
C
would test
D
had been tested
Listen to the two girls by the window. What language _____?
#103239
A
did they speak
B
were they speaking
C
are they speaking
D
have they been speaking
During the period of recent terrorist activities, people _____ not to touch an unattended bag．
#103992
A
had always been warned
B
were always being warned
C
are always warning
D
always warned