_______ that he made an obvious mistake, Jeff went on with his speech.
| A．Not realized | B．Not to realize |
| C．Not to have realized | D．Not realizing |
In the small brochure, you can see the latest models of sneakers of different famous brands, _______from 600 to 2,000 dollars.
| A．whose price ranges | B．their prices range |
| C．with prices ranging | D．their prices to range |
Believing that good will be _______with good and evil with evil, she did good deeds _____ she went. But to her disappointment, the result was quite the other way around.
| A．awarded; wherever | B．rewarded; wherever |
| C．awarded; where | D．rewarded; whenever |
While enjoying himself in the amusement theme park, he heard a loud cry of pain; he _____ himself around and ______ to see a girl had fallen off the swing and was crying for help.
| A．turned; terrified | B．swung; was terrifying |
| C．turned; was terrifying | D．swung; was terrified |
The invention of the chip greatly _______ the development of computer science; ______ the computer science stepped on the freeway of rapid development.
| A．improved; after that | B．advanced; after that |
| C．quickened; after which | D．advanced; after which |
A sharp sword was found buried together with the royal carpenter, which was believed _____himself________against grave robbers.
| A．used to defend | B．being used to defend |
| C．to be used to defending | D．to be used to defend |