问题补充:
---What does Tom’s uncle do?
---He is a teacher. He physics at a school now.
A. will teach
B. has taught
C. teaches
D. taught
答案:
A. will teach
B. has taught
(答案→)C. teaches
D. taught
解析:句意:汤姆的叔叔做什么工作?——他是一个老师。他现在正在一所学校教物理。结合语境可知下文描述的是客观存在的一种动作,故用一般现在时态,选C。