第10题 There used to be some trees by the lake,_________?A、was there B、were there C、weren’t there D、wasn’t there选择 C 确错了.到底是哪个答案?哪个是正确答案？
问题描述：
第10题 There used to be some trees by the lake,_________?
A、was there B、were there C、weren’t there D、wasn’t there
选择 C 确错了.到底是哪个答案?
哪个是正确答案？
答
A
答
应该是C的，而且usedn't 也对
答
选B .
答
C是正确答案。与主语保持一致