Living in Western China certainly has its problems, _________obtaining water is not the least.
| A．of which | B．where | C．as | D．whose |
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 |
Some 5-star hotels specialize in mouth-watering buffet（自助餐），offering a rich selection of quality food. With a discount card, you can surely drink and eat to your heart’s _________.
| A．association | B．circulation |
| C．entertainment | D．content |