Itisstronglyadvocatedthatmanylong-standingtraditions...
来源：语文精选馆 1.27W
问题详情：
It is strongly advocated that many long-standing traditions ___________ preserved despite the change of modern values.
A. must be B. are to be C. be D. are being
【回答】
C
知识点：虚拟语气
题型：选择题
