Question

You should always _____ your conclusion _____ careful research.

A．depend; on

B．base; on

C．put; into

D．base; by

Answer 1

B

试题分析：句意：你应该一直把你的结论放在仔细研究的基础上。depend...on取决于；base...on 基于；put...into把....放进，在...上种植。故选B。