Question

【题目】Who is going to take care of Tom when his parents are away ____ business?

A. in B. with C. for D. On

Answer 1

【答案】D

【解析】

试题分析：句意：当他的父母出差做生意的时候，谁打算照顾汤姆？On business表示做生意。结合语境，故选D。