---- ______ he dropped out of school?----His family had run into financial difficulties.A. Why was it that B. Why was thatC. Why was that it C. Why was it
The experiment has_________ the possibility of the existence of any life on that planet, but it does not mean there is no life on other planets.
What is the best way you can imagine ______the overuse of water in our school?
—Sorry, Ann. I’m afraid that I can’t go to the magic show by David Copper Field with you.— _____ Who knows when he will be back here again?
—I’d like a pen which _________ well.—Will this one _________?
However,at times this balance in nature is _______ resulting in a number of possibly unforeseen effects.