pick it up

pick it up pick it up 跟pick up it的区别? 是pick it up还是pick up it? pick up it和pick it 有什么区别? pick up it和pick it 有什么区别? pick it up什么意思快! pick it up,please是祈使句吗? When we see rubbish,we should_________.A.pick it upB.pick them upC.pick it up Your book is under the chair.PLease____.A pick it B pick up it C pick it up there is a pen on the floor .can you ____?A.pick up it B.pick it up C.pick up them D.pick them up 有pick up it 这么用的吗?与pick it up怎么区别? Please pick it up.为什么it要放pick up的中间 对snacks提问用them还是it?例如：pick them up 还是 pick it up 动词短语代词为什么代词在中间pick it up 和 pick up it You should pick it up (对pick it up 画线提问)怎么写? The photos are under the bed.Please____.A.pick up it B.pick up them C.pick them up pick up pick up