—Such a mistake could have been avoided. —Unfortunately, he _______ the mistake again and again.
#104834
A
repeated
B
would repeat
C
had repeated
D
would have repeated
推荐题目
According to a UN report, some 844 animals and plants ______ in the last 500 years.
#102976
A
disappeared
B
were disappeared
C
have disappeared
D
had been disappeared
You____________ television. Why not do something more active?
#104341
A
always watch
B
are always watching
C
have always watched
D
have always been watching
The problem with people in Africa ____that the more is given and the more ______.
#103689
A
is; is needed
B
are; is needed
C
is; they need it
D
are; they need it
Danny _____ hard for long to realize his dream and now he is popular.
#103778
A
works
B
is working
C
has worked
D
worked
I'm sorry. I _____________ you__________ to me.
#104802
A
don't know; are speaking
B
don't know ;were speaking
C
didn't know; were speaking
D
didn't know; are speaking