— What on earth are the police busy with?
— They have been looking into how the plane crash _______.
| A．came out | B．came up | C．came down | D．came about |
All the students are looking forward to the first________to take the College Entrance Examinations.
| A．measure | B．purpose | C．attempt | D．desire |
The head office of the bank is in Beijing, but it has ______ all over the country.
| A．companies | B．branches |
| C．organizations | D．businesses |
No one can________how the election will turn out, as there are many unknown facts.
| A．protect | B．prepare | C．prevent | D．predict |
_________ energy are abused in our daily life, only causing waste.
| A．Plenty of | B．Quantities of |
| C．A good many | D．An amount of |
He being a child of ________ intelligence，expecting too much of him will make him nervous.
| A．average | B．slight | C．usual | D．common |