While he was investigating ways to improve the telescope, Newton made ________ discovery which completely changed ________ man’s understanding of color.

It’s an important decision for you, so______ your time and think it over.

Can you ________ time to bring a cup to me?— Of course I can. Do you mean the cup ________ a picture of a dog on it?

I’m thirsty now. Could I have hot water? –OK. Here you are.

______ was reported in the local paper, since the carrying out of the performance salary, efficiency in work has ______doubled.