–There are always many volunteers in great events ?--Yes. Many hands make light work.A. a

问题补充：

–There are always many volunteers in great events, ?

--Yes. Many hands make light work.

A. are there

B. aren’t there

C. aren’t they

D. are they

答案：

A. are there

(答案→)B. aren’t there

C. aren’t they

D. are they

解析：考查反意问句。前半句是肯定，后半句是否定，主语用there，故选B。句意：——在打比赛中总有许多自愿者，是吗？——是的，人多好办事。