Not until ___ on TV ___ that the Chinese was rescued by the European Union Task Force.
| A．did I turn; did I know | B．did I turn; I knew |
| C．I turned; did I know | D．I turned; I had know |
I try keeping the meeting short, ______ to waste everyone's time.
| A．so as not to | B．in order to |
| C．in order to not | D．not so as to |
Don't call me unless there are some ______ matters.
| A．lazy | B．urgent |
| C．free | D．relaxing |
You will find the laptop well-designed when he ______ it ______.
| A．will bring …back | B．brings …back |
| C．takes …away | D．will take …away |
As we all know, he never ______.
| A．smoking | B．smoked |
| C．smokes | D．to smoke |
We ______ to clean the blackboard every day.
| A．take turn | B．in turn |
| C．by turns | D．take turns |