So difficult _______it to work out the problem that I decided to ask Tom for some advice.
#84494
A
I did find
B
did I find
C
I’ve found
D
have I found
推荐题目
Our school has used computers in teaching for ten years. As a result, not only______, but students become more interested in their lessons.
#82767
A
has teachers’ energy been saved
B
saved was teachers’ energy
C
teachers’ energy has saved
D
was saved teachers’ energy
Every evening after dinner, if not _____ from work, I’ll spend some time walking my dog.
#81344
A
being tired
B
tiring
C
tired
D
to be tired
Not until ________ the Internet ________ that the Chinese sailors were rescued by the European Union Task Force.
#79585
A
did I surf; did I know
B
did I surf; I knew
C
I surfed; did I know
D
I surfed; I had know
Tom wanted to play football with his friends in the street, but his father told him＿＿＿＿＿.
#84508
A
not to
B
not to do
C
not do it
D
do not to
Not only ______ a school in his hometown, but also he built a new hospital there.
#82455
A
he has set up
B
he did set up
C
has he set up
D
did he set up