—I’m sorry.I can’t catch you.__________—OK,it’s B-L-A-C-K.
—________ is the richest man in this town? —I think Mr Kim is the richest man.
Many sailors think that a thick fog is their ________ enemy.
I made a suggestion ________ he ________ to Australia for further education.
—Will you ________ our house while we are out on holiday? —Well, that ought to be no problem.
The chairman thought _____ necessary to invite Professor Smith to speak at the meeting.