— Do you know the old man ______ on the bench over there?— He is my grandfather.A．sitB．satC．to sitD．

题目简介

— Do you know the old man ______ on the bench over there?
— He is my grandfather.

A．sit

B．sat

C．to sit

D．sitting

题型：单选题难度：中档来源：不详

试题分析：句意：--你认得那边凳子上的老人吗？--他是我爷爷。这里需要定语修饰the old man，用现在分词做定语，所以选D。