(All the students )are back at school.对括号里提问. （ ）are back at

(All the students )are back at school.对括号里提问. （ ）are back at 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 are all the students back at school?is there a new building? The students are at school.对at school.提问 ---So you are back; are all the students present at the meet All the students are back ____ home.A.to B.at C./ back the are school students at 这几个词怎么造句 the students like (all the lessons) at school括号提问 All the students are back ______ home. the students have to wear school uniforms (at school)对括号里提问 ________are back at school.　　A.All the students　　　 B.All stu