at the student cafeteria什么意思

the student are at school at the student cafeteria什么意思 the student is sitting at his desk 为什么用at? 同义句are you the top student at school?are you ()()student at school? There student will study at home on the I_____. here are the results of student activity survey at green high school为什么student不佳's the student the student Here are the results of the student activity survey at Green High School.为什么用student,而不是students? She is better at Engilsh than()in the class A any other student B the other student 为什么选A? the student who____is best student many a student present at the meeting A hmany a student present at the meetingA has B have C was D were Here are the results of the student activity survey at Green High Here are the results of the student activity at Green High School Here are the results of the student activity survey at Green High here are the results of the student activity survey at Green High School. Here are the results of the ( )(student) activity survey at Hilltop High School.教教我 Here are the results of the (.) activity survey at Hilltop High School.(student) 填什么,为什么