Question

【题目】I have been teaching for 27 years, only ______ in the USA as an AFS volunteer for one year.

A. to work B. working

C. worked D. work

Answer 1

【答案】B

【解析】考查现在分词作状语。句意：我一直教学27年，只是作为一名AFS志愿者在美国工作过一年。此处是现在分词做伴随状态，故选B。