It may not rain; but you’d better take an umbrella .A. in returnB. in needC. in caseD. in

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。