12.So absorbed__________in her work that she didn't realize I was behind her.
| A．did she | B．was she | C．she did | D．she was |
We firmly believe that war never settles anything. It only ____violence.
| A． runs into | B．comes from | C．leads to | D．results from |
Duffield White, ______of Russian at Weslevan University, said that he was one of the youngest winners of the prize.
| A．professor | B．a professor | C．the professor | D．one professor |
____is well known, Taiwan is part of China.
| A．As | B．That | C．Which | D．It |
----You haven’t been to Beijing, have you?
----_____. How I wish to go there!
| A．Yes, I have | B．Yes, I haven’t | C．No,I have | D．No,I haven’t |
____the morning of the second day of the meeting, Dr. Smith read his paper.
| A．At | B．In | C．On | D．From |