问题补充:
It is reported that many a new house at present in the disaster.
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:many a +名词的单数形式,谓语动词使用单数,故排除AB,又从时间状语 at present可得知与现在有关,故选择答案D。句意:据报道,目前许多新房子在灾难中正被盖起来。