题干
—Look, what an old palace! It looks so great!
—Yeah, it _______ nearly 800 years ago.
A：was building
B：was built
C：has built
D：is built
答案(点此获取答案解析）
B
—Look, what an old palace! It looks so great!
—Yeah, it _______ nearly 800 years ago.
A：was building
B：was built
C：has built
D：is built
，已知Zn是反应物，下列说法错误的是
