please be quiet.we are not allowed to make much noise in the reading room,为什么allow加ed呢?

our teacher is coming.please()A.quiet B.be quiet C.to be quiet PLEASE _____(BE) QUIET WHEN WE ARE IN SCHOOL BUILDINGS Billy,please be quiet. Please be quiet 是什么意思? And please be quiet. Silence,please!Please be quiet! Please be quiet.We (have)a class meeting.Don't make any noise.They (have)a meeting Please ( ).We'll beginour class.A.quiet B.to be quiet C.be quiet D.bequiteWhere are koalas from let's ( )the koalas first .A.to see B.see C.look D.to look还有下面的 Be quiet ,please .The teachers ____ (have) a meeting . Please _____ quiet ,children.A.are B.is C.be WILL YOU PLEASE BE QUIET PLEASE怎么样 please be quiet 改为否定句 ______ ______ quiet ,please. Please be quiet (改成否定句) Please _____ ______ quiet. please be quiet 与 please keep quiet 区别是什么 please don't talk___in the library.We must be quiet here.填空急现在就要! 找出错误并改正.please be quiet.we are not allowed shouting in the library. Don't be l___.please be quiet Please be quiet.We are not allowed _____ much noise in the reading room.A.to make B.makeC.making D.to making