This is the very person that I am looking for为什么用that 而不用whom

1.This vase is very v____.It cost me about 5,000yuan.2.This animal is very r____;you cannot see it except in China.3.The floor is very dirty,can you m____ it?4.His i____ is only 1,000 yuan per month,so that he cannot afford this bike.5.Tom is out of This is the very best.什么意思 This is the very person ( ) I need. The h___of this party is very interesting he drives the car very fast and speed (l )is 6.5 kilometres per hour.怎么写 The cost of this trip is about 200 yuan per person.为什么不加ofThe cost of this trip is about 200 yuan of per person the of is about trip per this cost person 200yuan.连词成句 this computer is very expensive 改为同义句the this computer is very He drive the car very fast and the speed --------- is 6.5 kilometres per hour.请问填什么. 请问这句英语表达的是什么意思?Is this per yard?How much is the wholesale cost? this -----is very interesting. This is _______best wine.A.the far B.the by far C.very D.the very This is the very book that I lost yesterday. the a() of this book is a very young girl The()of this computer is very ()的同义句 This is the very book that belongs to this is the very book ___i am afterwhichthatwhosewhom This is the very MP4 which i find.