When asked to explain _____ he did to make his students so fascinated with his lessons, the teacher paused and thought deeply.
| A．what was it that | B．that what it was |
| C．what it was that | D．what was it |
–My daughter was admitted to Nanjing University, which she loves best.
-- ___________!
| A．Good luck | B．Have fun |
| C．Cheer up | D．Congratulations |
After reading her writing, every teacher came to the _______ that she was a very careful and promising girl..
| A．conclusion | B．decision |
| C．impression | D．opinion |
________they visited the Science Museum，they showed great interest in everything they saw.
| A．The first time | B．For the first time |
| C．At first | D．At the first time |
It is reported that a woman as well as two children ______ from a big fire yesterday.
| A．was saved | B．were saved |
| C．had been saved | D．have been saved |
We laugh at jokes, but seldom _____ about how they work.
| A．we think | B．think we |
| C．we do think | D．do we think |