These problems, ________ will seriously affect the growth of teenagers and even the nation’s future.
| A．not if solved properly | B．if solved properly | C．not if properly solved | D．if not solved properly |
he said he would ring me up, but he didn’t ___my telephone number?
| A．Has he forgotten | B．Must he forget | C．Must he have forgotten | D．Could he have forgotten |
Of all the students , ____ is so diligent as George.
| A．none | B．either | C．no one | D．neither |
If he had been taken good care of at that time, the boy ___ now.
| A．will not be sick | B．would not be sick | C．could not have been sick | D．isn’t sick |
Mr. John wanted to go hunting, but he didn’t want to go fishing, ___.
| A．so did his son | B．neither did his son | C．nor did his son | D．so it was with his son |
The __ girl likes to ask too much about ___ privacy.
| A．twentyo years-old… others’ | B．twenty-year-old…other’s |
| C．twenty-year-old..some else’s | D．twenty-year old..other’s |