Who is the student___in the library.A.who B.that reading C.reading D.he is reading

He is always the first student__(leave)school.如题,用所给单词的适当形式填空PS.要说明为什么 Who is the man. Who is the man who is the woman____for? who is the beautiful who is the girl? who is the writer who is the pig who is the Who is （ ) the middle? who is the winner? WHO IS THE SB who is the king? who is the speaker? who is the Who is the beautiful girl who is the letter from who is answer the phone?