We worked all night, _____ for the coming procession.
| A．to prepare | B．preparing | C．prepared | D．was preparing |
You must learn to consult your feelings and your reason________you reach any decision.
| A．although | B．before |
| C．because | D．unless |
In the global economy，a new drug for cancer，________ it is discovered，will create many economic possibilities around the world.
| A．whatever | B．whoever |
| C．wherever | D．whichever |
One can always manage to do more things，no matter________full one’s schedule is in life.
| A．how | B．what |
| C．when | D．where |
________I have to give a speech，I get extremely nervous before I start.
| A．Whatever | B．Whenever |
| C．Whoever | D．However |
Mark needs to learn Chinese ________ his company is opening a branch in Beijing.
| A．unless | B．until |
| C．although | D．since |