It is the only time in history that two Nobel Prizes to the same person.
| A．have been given | B．had been given |
| C．have given | D．will give |
________, you'll never be able to persuade him.
| A．However hard may you try |
| B．Try however hard you may |
| C．Hard as you may try |
| D．Try hard as you may |
Experts have found that the disease will lead to a greater increase in the number of sufferers unless ________ seriously when the symptom first appears.
| A．treated | B．to be treated |
| C．being treated | D．be treated |
What shall we use for power when all the oil in the world has ________？
| A．given out | B．put out |
| C．held up | D．used up |
Cloning humans has been _____ in the science world for many years and it is likely to continue .
| A．ridiculous | B．contemporary |
| C．controversial | D．contradictory |
—You have to believe in yourself. No one else will, if you don’t.
—_______. Confidence is really important.
| A．It’s not my cup of tea |
| B．That’s not the point |
| C．I don’t think so |
| D．I couldn’t agree more |