问题补充:
—Have you seen Mr. Smith?
—Yes. Look, he with a parent in the office.
A. talks
B. talked
C. is talking
D. has talked
答案:
A. talks
B. talked
(答案→)C. is talking
D. has talked
解析:句意:你看见史密斯先生了吗?——,是的,看,他正在办公室和一个家长谈话。结合语境可知下文描述的是现在正在进行的动作,故用现在进行时态,选C。