问题补充:
It may not rain; but you’d better take an umbrella .
A. in return
B. in need
C. in case
D. in fact
答案:
A. in return
B. in need
(答案→)C. in case
D. in fact
解析:考查介词短语:A. in return做为回报B. in need 需要C. in case以防万一D. in fact事实上,句意:可能不会下雨,但最好带雨伞以防万一。选C。