17.
W: I have to think about your offer. I can't say "yes" or "no" at the moment.
M: You can take your time. It will do if you let me know your decision in a day or two.
Q: What does the man imply?
正確答案：D
解析：女士說自己現在無法給男士明確的答復，男士說：“不著急，一兩天以后給我消息都可以。”take your time意為“不著急，慢慢來”。所以選D。如果聽不懂習慣表達，可以利用后文的補充說明（你可以在1-2天內告訴我你的決定）來進一步理解。

18.
M: Can you look up the word for me?I never could get the alphabet straight.and it takes me hours to find the word I'm looking for.
W: Sure I'll be glad to. Let me see...
Q: What does the man want the woman to do for him?
正確答案：A
解析：男士說：“你能幫我查一個字嗎？”接著解釋他弄不明白字母表的查法，可見A正確。look up意為“查找”，只要聽明白該短語便可直接定位到選項A，find為look up的同義轉換。