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____ is to be done is ______ to carry it out smoothly since the decision has been made．

—Mum, have you seen my U-Disk?
—_______ you bought last Sunday? I'm-afraid I haven't seen _______．

Our factory has been developing rapidly these days． This year’s production is five times ______ it was ten years ago．

—What can I do for you?
—I’d like to buy a computer for my son, ______ at a good price but of great quality．

—What is the man, do you know?
-— I don’t know exactly． But I think he can be ______ but a teacher．

He didn’t make       clear when and where the meeting would be held.

I want very much to buy a car, but I can’t afford ________.

—Excuse me, I want to buy some milk, but I can’t find a supermarket.
—I know ______ nearby. Come on, I’ll show you.

—Have you got used to the Chinese food, Robert?
—Yes, but I don't like ________ when a Chinese host keeps serving me the food I don't like.

After graduating from college, I took some time off to go traveling,       turned out to be a wise decision.