_________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 |
The black horse is___________ of the pair.
| A．the strongest | B．the stronger |
| C．the strong | D．quite strong |
I coutdn't have got to the meeting on time____________ an earlier train.
| A．if I had not caught | B．unless I had caugh |
| C．if ! did not catch | D．unless I caugh |
Take a taxi,___________ you'll miss your train.
| A．in | B．during | C．throughout | D．within |
________ is quite natural,a beginner can't read the books written in English very quickly.
| A．Which | B．As | C．What | D．It |
—Do you regret paying 500 dollars for your necklace?
--No, I would gladly pay__________ for it.
| A．two times as much | B．twice as many |
| C．twice as much | D．as twice as much |