【单选题】
She stumbled and _____ the coffee.
【单选题】
Nobody knows his _____ for helping us.
【单选题】
Communication between a young couple is a(n) _____business.
【单选题】
To _____ these two ideas is impossible, they are too different.
【单选题】
All of the plants now farmed on a large scale were developed from plants _____wild.
【单选题】
Our boss, Mr. Thompson, _____a raise in salary for ages but noting has happened yet.
【单选题】
Advertising media like direct mail, radio, television and newspapers _____to increase the sales of industrial products.
【单选题】
Most importantly, such an experience helps _____a heightened sensitivity to other culture’s and will bring about a greater appreciation of one’s own culture as well.
【单选题】
To make this _____clear we shall have to look closely into biology’s long history.
【单选题】
Our civilization cannot be thought of as _____in a short period of time.