—When did you start your math homework？
—One hour ago，but I________it yet．
| A．didn’t finish |
| B．finished |
| C．have finished |
| D．haven’t finished |
The flight to London wasbecause of the heavy snow.
| A．put up | B．put out |
| C．put off | D．put away |
Tom is weak in physics. He always feels _______ before he takes a physics test.
| A．interested | B．comfortable |
| C．nervous | D．proud |
Ann is a careful girl. She always goes over her exercises to____ there are no mistakes．
| A．look for | B．make sure |
| C．find out | D．think about |
To be healthy, one must have at least _____ sleep every day.
| A．eight hours | B．eight hour’s |
| C．eight-hour’s | D．eight hours’ |
There are forty students in Class Four. And of them girls.
| A．two three, is | B．two thirds, is |
| C．second threes, are | D．two thirds, are |