( )about the best way to learn English,A there are a certain doubt
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
应该是there is a certain doubt,主谓一致