please don't ( t )your books on the floor .It
please don't ( t )your books on the floor .It
Look!Your books are e----- on the floor.Please put them in t
Please pick up the _______. Don’t keep it on the floor. A. b
Please pick up the _______.Don’t keep it on the floor.A.wate
Don't drop ____ on the floor.Please pick it up.A water B pap
关于pick Your books are on the floor ,please pick——————.A up t
Don’t leave your books on the table.Please _______. A.take a
Don‘t p( )your bag on the floor
Sam, your books are on the floor. Please pick___ (it/them) u
don't throw rubbish on the floor
don't leave them on the floor
Don't litter the floor为什么 "the floor"前不加on?