Today the Red Cross provides a number of services for the public, such as helping people , teaching first aid and providing blood.
A. in need
B. in return
C. in preparation
D. in anger
网友回答
(答案→)A. in need
B. in return
C. in preparation
D. in anger
解析：考查介词短语辨析。A需要；B作为回报；C准备；D生气；句意：今天红十字会给公众提供了很多的服务，例如帮助那些需要帮助的人，教师急救知识和鲜血等等。根据句意说明A正确。