Question

Some ______are ______their time to help the old people.

A．volunteer; volunteer	B．volunteers; volunteering
C．volunteering; volunteers	D．volunteers; volunteers

Answer 1

B

试题分析：句意：一些志愿者在自愿花时间帮助老人。volunteer志愿者，名词，volunteer to do sth.自愿去做某事，动词，这是一个现在进行时的句子，故选B。