Is she in Grade One

Is she in Grade One Which grade is she in? He is in Grade one.对Grade one提问 Han Mei is a Chinese girl.She is in Grade One.There ___ six 把he is in class one,grade six she piays football on the piay 1.Is Kim in Class One,Grade Is Kim in Class One,Grade he is in grade one提问 He is in (Grade one).括号提问 in,Tony,is grade,class,one,two she is in grade five now Sally is in grade one.i am in grade one to