——Whoknockedatthedoor?

——I’venoidea.Ijustpretendednobodywasathome,soIdidn'taskwho_____was.

— The manager of the factory wants to improve production a great deal, but he doesn’t spend much on technology.

— I am afraid he won ’t realize his dream. You know ________.

—Excuse me. Do you have the time?

—__________.

——I’d like to invite you to a concert this evening.

——Thank you, but I’ll be free I’m not sure at the moment.

—Themanagerofthefactorywantstoimproveproductionagreatdeal,buthedoesn’tspendmuchontechnology.

—Iamafraidhewon’trealizehisdream.Youknow________.