She always thinks of ____ she can do more for her students.
| A．what | B．how | C．if | D．whatever |
The Yellow River is _____ the Pearl River.
A twice long as B twice as long as
C as twice longer as D as long twice as
He used to visit his parents _____, but he is too busy to call on them now.
A every second weeks B every two weeks
C every a few weeks D every two week
On a ________ morning the little girl was found ________ at the corner of the street.
| A．freezing, freezing | B．freezing, frozen | C．frozen, frozen | D．frozen, freezing |
What shall we use for power when all the oil in the world has ________ ?
| A．given out | B．put out | C．held up | D．used up |
My English-Chinese dictionary has disappeared.
Who ________ have taken it?
| A．must | B．should | C．would | D．could |