All those _____ about the poor children should be _____.

They _______ on the program for almost one week before I joined them, and now we ________ it as no good results have come out so far.

I'm tired out.I ________ all afternoon and I don't seem to have finished anything.

A kind of newly­made shoes, if put into the market, ________ large orders because the heels can switch from 9 to 4 centimeters.

—I’m sorry to keep you waiting.—Oh, not at all, I______ here only a few minutes.