Directions: Beneath each of the following sentences there are four choices marked A, B, C and D. Choose the one answer that best completes the sentence.
25. I always sit in the non-smoking section of restaurants to reduce my exposure ________ smoke.
A. to B. with C. in D. from
26. I’m always looking forward to owning an electronic dictionary so my father is going to buy ________ for me as my birthday present.
A. it B. that C. this D. one
