—I have telephoned him twice but I couldn’t get through.—I think that the line _____ be being worked on today.

The government has agreed to pay the firms extra sums to ________ for their financial losses.

According to his letter,he had to _______ his affairs in Paris before he could return home．

— Linda, can you give me some tips on doing this project? — Sorry, but I’m not the person to ______ how the job should be done. 

Friendships between girls are usually _______ in shared feelings and support,but friendships between boys are based on shared activities or interests.