He is the only one of the students that have been there.首先,引导词填that,但是我在搜索的过程中看到填who也对,为什么?还有,为什么用的是have而不是has?帮忙解答一下啊,明天月考啦

He is the only one The boy is my only one,he name is I only love you no matter who he is!you are the only one in my The only one is my he is the only one of the students who is good at singing He is the only one of the students who is never late. He is the one. He is the only one against my idea.是不是就等于He against my idea. He is the only one of the family who s____ the terrible earthquake 翻译：He is the only one of the students who knows the accident. he is the only one of the students in our school who plys the piano well. he is only one year old是什么意思 几道词形转换He wants to the women to do the ____ (wash) for him.The play is very short ----it only ____ (last) one hour.Now he is preparing _____ (return)t o university. He is the only one of the boys who enjoys playing basketball.怎样译? He is one of the students who are never late.什么意思还有 He is the only one of the students who is never late. He is the only one of my friends who is working hand of my friends 做one的什么成分 there is only one candle on the cake对only one提问They played games at five o'clock.对at five o‘clock提问 He is the_____ one of the good______.A.only,students.b .only,student,c,/,student.d,/,students.He is the_____ one of the good______.A.only,students.b .only,student,c,/,students.d,/,student.