Plans have been proposed ___ the largest dam in the world to be built along the Congo river．
| A．of | B．with |
| C．for | D．on |
—Where is our English teacher?
—She is in the classroom, ________ the exercises _________ the students have done at home.
| A．explaining; / | B．explaining; for | C．explained; to | D．explained; from |
Paul is good, kind, hard－working and intelligent; __________, I can’t speak too highly of him.
| A．as a result | B．in a word | C．by the way | D．on the contrary |
As_______ mountains beyond our village are becoming greener and greener, they have become _________ home to a large amount of wild life.
| A．the; / | B．the; a | C．/; a | D．the; the |
－I always take care when doing papers on the computer.
－You meant it! One cannot be too ____________ working on it.
| A．nervous | B．sure | C．anxious | D．careless |
After ____________ seemed ages, the newsman disclosed the facts.
| A．there | B．which | C．what | D．that |