单选题
The chemistry teacher asked the pupils what water was ______ of.
A. consisted B. compounded C. composed D. conceived
【正确答案】
C
【答案解析】[解析] 题干大意为：化学老师问同学们水是由什么组成的。be composed of意为“由……构成”；而consist常用作consist of，意为由什么构成，通常不用于被动语态；compound意为“复合的”；conceive意为“设想，构思，认为”。