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 |
The girl had hardly rung the bell the door was opened suddenly, and her friend rushed out to greet her.
| A．before | B．until |
| C．as | D．since |
It’s more than half a century ________ my grandfather joined the Party and became a servant to the people.
| A．since | B．that | C．when | D．while |
We ________ the project on time without your timely help .
| A．would not have finished |
| B．will not finish |
| C．would have finished |
| D．will finish |
Planning so far ahead ________ no sense---so many things will have changed by next year.
| A．makes | B．made | C．making | D．make |
Spelling Bee is a contest _____ competitors, usually children, are asked to spell as many words as possible.
| A．which | B．where | C．what | D．when |