Unfortunately, the element Madam Curie devoted all her life her death.
| A．to caused | B．causing | C．to be caused | D．to causing |
Market economy is a competitive economy, ______ I think, suppliers, producers and dealers should obey market rules and develop cooperative relation based on mutual benefits.
| A．that | B． which | C．where | D．how |
______ ever find something you want to save on your own computer, you can download it.
| A．Should you | B．If should you |
| C．If you will | D．Will you |
Today acupuncture, the art of “magic needles”, has become popular round the world, ______ have other traditional Chinese medicines.
| A．so | B．as | C．that | D．which |
Penicillin became the greatest drug of the 20th century, without ______ many people ______ from sickness or even small wounds.
| A．it, died | B．which, have died |
| C．which, would have died | D．it, would have died |
Hot water is converted to electricity by a turbine. The underlined word can be replaced by ______.
A. conveyed B controlled. C. chosen D. Changed