You should ____,if you find litter on the floor.

You should ____,if you find litter on the floor. Lee,you can't litter on the floor意思相同句 there is a pen on the floor .can you ____? litter on the floor的意思是什么 Don't litter the floor为什么 "the floor"前不加on? you can find a litter box___the corner of the kitchen You can find Old Jack's Bakery on the third floor.（对the thir There is a box on the floor(变一般疑问句） You can find the electri you should get there on time.该同义句,you are ____ ____ ____ the 看一看,填一填:you(should/shouldn,t)put books on the floor I find ___ necessary ____ you should give him some advice on Were you on the second floor?