Plans have been proposed ______ the largest dam in the world to be built along the Congo river.
_______ a reply from Mabel, Jack sent another e-mail to her.
The question under discussion here is ______ of the "white pollution".
第二节:单项填空(共15小题,每小题1分,满分15分)I hate _______ when someone calls or knocks at the door while I’m still in bed.
----- Would you mind helping me with my suitcase? I really can’t manage it by myself.----- ________.
______ after a long walk, Henry called and said he couldn’t come.