This is the best way _____ the river from _____ .
| A．to prevent; being polluted | B．preventing; polluting |
| C．preventing; being polluted | D．to prevent; polluting |
We all knew from the very _____ that the plan would fail.
| A．outcome | B．outset | C．income | D．output |
. He looked rather untidy as there were two buttons _____ from his coat.
| A．loosing | B．losing | C．off | D．missing |
Lawyers often make higher _____ for their work than they should.
| A．bills | B．charges | C．prices | D．costs |
The workmen made so much _____ that Mrs. Walker had to spend three days cleaning up afterwards.
| A．trouble | B．damage | C．mess | D．nuisance |
They have held several meetings to _____ next year's production plans.
| A．set down | B．make out | C．work up | D．draw up |