---You were tired out after the mountain climbing, weren't you? ---Yes, ______. I could hardly rise to my feet.
Putting in a new window will ______ cutting away part of the roof.
Mr. Smith was so angry at all _____ Bill was doing ______ he left.
–He didn’t feel a bit nervous when _____. --No. He’d spent a lot of time _____ for it after all.
We will be for ______ promises to volunteer to help us solve the puzzling problem.
Tim Bemers-Lee is generally considered ______ the World Wide Web, on which all the information is shared by all.