--- ____ the new railway completed when you went back to your hometown last summer?
问题描述：
--- ____ the new railway completed when you went back to your hometown last summer?
--- Not yet.It ____ then.
a.Was; was built b.Was; was being built
c.Had; was built d.Had; was being built
选B 第一个空为什么不用完成时态呢?
答
因为第一个空是问句,Was sth completed.如果had,那就是 had sth been completed.