Question

His father is __________ engineer and he works __________ research.

A．an, on

B．an, with

C．the , on

D．a, with

Answer 1

A

本题考查冠词及介词。engineer 表示工程师，他的前用an，work on是从事的意思，故选A。句意：他的父亲是名工程师，他从事研究。