问题
选择题
(2013·济南3月模拟)You should study the details of the policy________before you sign it.
A.in return
B.in advance
C.at ease
D.on purpose
答案
答案:B
考查介词短语辨析。句意为:在你签字之前你应该预先研究这项政策的细节。in advance预先,提前;in return作为回报;at ease不拘束,放松;on purpose故意。根据句意可知B项正确。
答案: B