— Which of the two books will you take? — I’ll take ____and I think ____of them is very important to me.
A dark cloud is a _______of rain.
Since advertising can increase sales of production, _____it can _____the price.
– What are you advertising ______? ---________. I need a place to stay at.
– Do you have any idea which to choose? --- Well, you’d better take this one. It’s ______in price and good in quality.
_____of modern agriculture, more and more waste is produced.