这几句英文文法对麼?
1.Letmeknowwhatbookyouwant.
2.Whichbookdoeshesayhewants?
3.Whichdoesyousayhewants?
4.Whodoyousayisthebeststudent?
请帮检查有无错误
第四题后面不是应该s+b麼像是
4.Whodoyousaythebeststudentis?