We should try all means to ensure ourselves_____ all possible risks.

Our opinions on language learning differ greatly       each other’s in that respect.

The expert ____ health has discovered that five patients suffering the same disease are similar  
____ age.

He arranged ____ a man to meet his uncle at the station because he was busy with work.

Whatever work you are doing, you should concentrate your attention ______it.

Mrs. Smith has tried many times to persuade her husband to give          smoking, but Mr. Smith wouldn’t listen, Finally Mrs. Smith had to give          and let him be.

—Congratulations        passing your driving test! —Thank you.

Two days later, the fighting between the two countries left the area         .

_____ being too large, the color and the style of the dress suit me well.

—How do you feel about our manager—Mr. Yang?
—He is very easy­going. I feel ____ when I stay with him.