Only when I made it to the train station _______ that I had left my ticket at home.
#82660
A
have I realized
B
did I realize
C
had I realized
D
would I realize
推荐题目
----I’m frustrated after so many failures. I can’t see any hope.----Behind every misfortune           !
#81539
A
does an opportunity lie
B
is an opportunity lying
C
lies an opportunity
D
an opportunity lies
He suggested that the work _____ at once. 
#84527
A
be done
B
should do
C
could do
D
does
 In no case ______ allowed to go on.
#84028
A
should such a thing be  
B
should not such a thing be
C
such a thing should not be
D
such a thing should be