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 |
Do you consider it any good _____ the truck again ?
| A．to repair | B．repairing | C．repaired | D．being repairing |
We're leaving at six o'clock , and hope _____ most of the journey by lunch time .
| A．to do | B．to have done | C．to make | D．to have made |
It's nearly seven o'clock . Jack _____ be here at any moment .
| A．must | B．need | C．should | D．can |
If you _____ stop smoking , you can only expect to have a bad cough .
| A．won't | B．would not | C．do not | D．can not |
He suggested the person referred _______ put into prison.
| A．is | B．be | C．to be | D．should be |