I lost sight of Wang Ping when we reached _________ looked like a large market.
| A．that | B．which | C．what | D．where |
Do you think everything _______was true?
| A．what he said | B．he said | C．which he said | D．as he said |
It was Tom and his friends that________for the serious accidents.
| A．were to be blamed | B．was to be blamed | C．were to blame | D．was to blame |
He was reading a very interesting story, completely_______himself in the story.
| A．lost | B．being lost | C．to be lost | D．losing |
Whoever invented _______wheel is believed to have made ______most useful invention in _______history.
| A．a; the; / | B．the; the; / | C．the; a; / | D．a; a; the |
The importance of saving gas_______be stressed too much. Automobiles use up some 70 billion gallons of gas a year.
| A．can’t | B．mustn’t | C．shouldn’t | D．may not |