．_________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 |
About 60 percent of the students ________ from the south, the rest of them ________ from the north and foreign countries.
| A．are; is | B．are; are | C．is; are | D．is; is |
Now Tom with his classmates ________ football on the playground.
| A．play | B．are playing | C．plays | D．is playing |
With two children ______ middle school in the nearby town now, the parents are working hard.
| A．to attend | B．attending | C．attended | D．having attended |
Having answered the phone, I couldn’t but ______ what would happen next.
| A．wondering | B．wondered | C．wonder | D．to wonder |
All of us remember the earthquake that ______ Wenchuan in 2008.
| A．attacked | B．struck | C．knocked | D．exploded |