–What do you think of your job, Bob?
–Though ____ flexibility, it is a job____ you are doing something serious but interesting.
| A．lacking; where | B．lacking of; which |
| C．lacking in; when | D．lacking; that |
________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 |
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 |
She says that she'll have to close the shop ________ business improves.
| A．if | B．unless | C．after | D．when |
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 |