学员lvli516516: 主谓一致第６题上的答案没有说清。
6. Many a student _______ the importance of learning a foreign language.
A. have realized B. has realized C. have been realized D. has been realized
请明确!
老师回复：many a 后的谓语动词用单数，答案为B
has been realized, have been realized 皆为被动语态，与句意不符
