________are back at school.　　A.All the students　　　 B.All stu

________are back at school.　　A.All the students　　　 B.All stu look,() students are happy at school A.the all B.all the C.t are all the students back at school?is there a new building? (All the students )are back at school.对括号里提问. （ ）are back at All the students are back ____ home.A.to B.at C./ All the students are back at school.句中at能否换成to?为什么? All the students are back at school on the first day of the the stories ________are all true. All the students enjoyed themselves at the school party last the students like (all the lessons) at school括号提问 All the students must wear u____ at our school. we _____ going to meet at the school gate.a.are all b.all ar