四、单项填空（共15小题，计15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
16. The underlined part in the word “ plays ” is pronounced as ______.
A. ∕z ∕ B. ∕s ∕ C. ∕iz ∕ D. ∕ ts ∕
答案：A
解析：此题考查读音规则，字母s在元音音素之后读/z/
17. –Excuse me, sir, but I don’t think you can smoke here.
–Really sorry. I ______ this is a non-smoking area.
A. don’t know B. didn’t know C. have no idea D. haven’t known
答案：B
解析：此题考查否定前置的相关知识。
18. –Which part is meant for me?
–You can take _______ half. They’re exactly the same.
A. this B. any C. every D. either
答案：D
解析：either表示两者中的任何一个。
19. The government decided to take some action _______ the situation
