Question

【题目】I saw some boy students basketball when I passed the playground.
A.played
B.plays
C.playing
D.to play

Answer 1

【答案】C
【解析】句意：当我经过操场时，我看见一些男学生们在打篮球。根据固定短语see sb. doing sth. “看见某人在做某事”可知，此句用非谓语动词形式，现在分词做宾补．故选C。