Please pick it up.为什么it要放pick up的中间

pick it up,please是祈使句吗? Please pick it up.为什么it要放pick up的中间 look at the paper on the floor,please pick it up 还是 pick them up? Can you pick it up for me,please改为祈使句 这怎么写啊?Your book is under the chair.Please ( ).A.pick it B.pick up it C.pickYour book is under the chair.Please ( ).A.pick it B.pick up it C.pick it up there is some rubbish on the grounp.Please __A pick them up B pick up themCpick it upDpick up it There is something on the floor.Please ___. A.pick up it B.pick up them C.puck it up D.pick them up Whose knife is on the floor?Please pick it up.whose换成Who's行吗pick it up换成pick up it行吗?为什么？ 把My pen is on the ground.Can you pick it up for me,please?合为一句 pick it up There is some money on the floor,please _______. A pick up it B pick them up C pick it up答案是C为什么 My pen is on the ground.Can you pick it up for me,please 讲两句合并为一句Please ------ ------ -------- ------- for me 中间只能填4个 pick it up 跟pick up it的区别? 是pick it up还是pick up it? 当pick up 解释为拾起的时候,是pick up sth还是pick sth up?有时候看到pick it up,有时候看到pick up the pen 这样的句子,到底是怎么样呢? 为什么是pick it up 而不是pick up it感觉很迷茫.谁可以浅显地给我讲一下? 祈使句怎么改Can you pick it up for me please.怎么改成祈使句? Here is something on the floor.Please pick( )up.这里填 it 还是 them