I took my driving license with me on holiday, ________ I wanted to hire a car.
A. in case B. even if
C. ever since D. if only
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
She says that she'll have to close the shop ________ business improves.
A. if B. unless
C. after D. when
Mark needs to learn Chinese ________his company is opening a branch in Beijing.
A. unless B. until
C．although D. since
________ I have to give a speech, I get extremely nervous before I start.
A. Whatever B. Whenever
C. Whoever D. However
________ small, the company has about 1，000 buyers in over 30 countries.
A. As B. If
C．Although D．Once
