While watching television, ____.
| A．the doorbell rang | B．we heard the doorbell ring |
| C．there was someone knocking at the door | D．the doorbell was ringing |
The two boys fought and fought until one ______.
| A．gave up | B．gave in | C．gave | D．gave off |
He will _____ our class to sing at the school singing contest.
| A．take place of | B．stand for | C．represent | D．representative of |
They told us that these small apples are often sweeter than big ____.
| A．those | B．one | C．that | D．ones |
The girl ____ a beautiful skirt has told me the news. Which is not right?
| A．wearing | B．dressed in | C．in | D．having on |
“Is there anyone in your class ____ the name of Mary? ”____.
| A．whose; No | B．her; None | C．by; No one | D．called; Nobody |