Please don't ________ others when they are in trouble.A.smile to B.smile at C.laugh at D.laugh

Please keep _______ in the library .Don't talk. please don't park Please you don't please don't thouch Please Don't please don't go please don't flit Please don't please don't let please don't say Please Don't Please don't throw litter here and there.改为反问疑问句Please don't throw litter here and there.改为反义疑问句Please don't throw litter here and there._______ _______? Don't turn left,please _______.A.go straight B.turn right C.go down _______,speak english.A mary B please C don't If you don't know the new words,please _______ ________ _______ a ______ (查字典)ti填什么呢? please don't be sad ,please don't Recollection 1.please standup.don`t( )down,please. 1.Don't speak to a _____.(strange).2.I can't hear you.Please speak a little _______(loud).