Question

【题目】There are many people________ in the factories.
A.work
B.worked
C.working
D.to work

Answer 1

【答案】C
【解析】句意：工厂里有许多人在工作。此处修饰名词people的定语，表示人们正在工作，故用现在分词表示主动和正在进行。故选C。