【单选题】
The room was so quiet that she could hear the____ of her heart.
【单选题】
____ the water sports — sailing, rowing, diving and swimming, I like rowing best. ?
【单选题】
In ____ recent years, Niagara Fallshave come to be appreciated more for their natural beauty as _______ wonder of nature.
【单选题】
He is ____, but his wife is _____.?
【单选题】
By the end of last month, she ____ over five hundred letters of congratulation from different parts of the world.
【单选题】
Mr. Downham asked the public their views on the two subjects currently ____ discussion.
【单选题】
People just say it out of politeness and they don’t really ____ it. ?
【单选题】
—Don’t forget to come to my birthday party tomorrow.—I ____ .
【单选题】
Fortunately, Jack was only slightly injured in the traffic ____ .
【单选题】
I want to paint the wall, but I can’t ____ on the color. ?