二、单项选择（每小题1分，满分10分）
16. —Your tie goes very well with your shirt． — _______
A．Oh, I got it on sale． B．I bought it at half price．
C．Does it really look OK? D．No, not so nice．
17. The police________ him to see if he had a gun.
A. searched for B. searched C. in search of D. looked for
