( )about the best way to learn English,A there are a certain doubtB There existed a certain doubt C It existed a certain doubt D There had a certain doubt给出的答案是B.请问能不能选择A答案?为什么?
问题描述：
( )about the best way to learn English,A there are a certain doubt
B There existed a certain doubt C It existed a certain doubt D There had a certain doubt
给出的答案是B.请问能不能选择A答案?为什么?
答
正确答案B There existed a certain doubt
A应该把are改为is,，因为a certain doubt 是主语，是单数
又如：There lives an old man in the old house
There stands a tall tree in front of the house.
答
B
A答案 应该是there is
答
应该是there is a certain doubt,主谓一致