____________professional violinist practices for several hours a day, but____________ violinist has his own way of playing the Beethoven concert.
| A．Each, every | B．Every, each | C．One, a | D．All, each |
It was the dream of becoming rich _____ attracted people from all over the world to the state, ______ gold was discovered in 1848.
| A．that; where | B．that; which | C．which; where | D．what; in which |
Peru, a country ____ the Pacific coast of South America, gained its independence ______ Spain in 1821.
| A．off; from | B．along; of | C．on; of | D．on; from |
All witnesses _____ to the traffic accident are required to make their statements.
| A．appropriate | B．accessible | C．relevant | D．suitable |
He apologized for ____able to inform me of the change about the plan in advance.
| A．his being not | B．his not being | C．him not to | D．him to be not |
—Li Ping, your cousin speaks fluent English, like a native speaker.
—No wonder. He once _____ in New York for two years as a visiting professor.
| A．had worked | B．has worked | C．worked | D．has been working |