1£®He has made an important contribution(contribute)to the company's success.

2£®He was very strict  with himself when he was young.

3£®The trade union movement(move)is concerned with working conditions.

4£®We explained our plans and he was very enthusiastic(enthusiasm)about them.

5£®The bridge under construction(construct)will be open to the public next year.

6£®It is universally(universe)known that the earth is round.

7£®She was instructed to act with caution(cautious)£®

8£®Over 2£¬000 people were in attendance(attend)at yesterday's demonstration.