So difficult ______ it to work out the problem that I decided to ask Tom for advice.
#84112
A
I did find
B
did I find
C
I have found
D
have I found
推荐题目
Wang Lin failed to be admitted by Hong Kong University last year,and only then________the importance of English.
#82322
A
he finally realized
B
he had realized
C
had he realized
D
did he realize
Luckily, the people there did ______ help him. 
#81393
A
that they could
B
which they could to
C
what they could
D
what they could to
If _____ the same treatment again, he’s sure to get well.
#84538
A
giving
B
give
C
given
D
being given
If you don’t go to his birthday party next Friday,_____. 
#83878
A
so do I
B
so will I
C
nor do I
D
nor will I