—May I speak to your manager Mr.Williams at five o’clock tonight? —I’m sorry. Mr. Williams ________ to a conference long before then.
The world will live happier lives if people have ____ better understanding of _____ idea of harmonious globe.
If better use is _______ your free time, you’ll make greater progress in that.
The old pianist wouldn’t listen to our repeated request that he _______ in public again.
The army officer _______ his men to fire as soon as the enemies came up.
--- I hear a number of workers in the factory ______ out of work. --- Yes, and the number _______ quite huge.