---I have no idea his proposal was turned down by the committee.
---Me, either.
| A．why it was that | B．how was it that |
| C．was it that why | D．it was that how |
In copying this paper, be careful not to _______ any word.
| A．leave behind | B．leave aside | C．leave off | D．leave out |
Who ________ a theory about black holes?
| A．put forward | B．put down | C．put away | D．put off |
---How about your journey to Mount Emei?
---Everything was wonderful except that our car ________ twice on the way.
| A．slowed down | B．broke down | C．got down | D．put down |
I feel it is your husband who ________ for the spoiled child.
| A．is to blame | B．is going to blame | C．is to be blamed | D．should blame |
Only when the war was over ________ return to their hometowns.
| A．have the soldiers | B．the soldiers | C．the soldiers did | D．did the soldiers |