There used to be a tower here,___?A.usedn't it B.used there C.didn't it D.didn't there

问题描述:

There used to be a tower here,___?A.usedn't it B.used there C.didn't it D.didn't there

D.didn't there.因为used to be是“过去”的意思,所以,反问用表示过去的didn't there.