Rick watched the doctor ______ a pencil and write something on a piece of paper.选什么?为什么选
问题描述：
Rick watched the doctor ______ a pencil and write something on a piece of paper.选什么?为什么选
Rick watched the doctor ______ a pencil and write something on a piece of paper.
A．take B．took
C．taking D．to take
答
A．take
瑞克看着医生拿起笔,并在一张纸上写下一些东西.
watch sb.do sth.