Question

－Where are the boys of Class Five?
－I saw them _________basketball on the playground.
A. played                   B .playing                  C. to play

Answer 1

B

试题分析：句意：五班的男孩去哪里了？我看到他们在操场打篮球。See sb. doing sth.看到某人正在做某事，动词用ing形式，故选B。