问题补充:
It is reported that many a new houseat present in the disaster area.
A. are being built
B. were being built
C. was being built
D. is being built
答案:
A. are being built
B. were being built
C. was being built
(答案→)D. is being built
解析:考查主谓一致。many a +单数名词,许多,做主语时谓语动词应用单数;又因为at present表现在,应用一般现在时态,句意:据报道许多新房子现在正在灾区被建造。故选D