1.In order to improve English,___
A.Jenney's father bought her a lot of tapes
B.Jenney bought her a lot of tapes
C.A lot of tapes were bought by Jenney
D.A lot of tapes were bought by Jenny's father
2.In such dry weather ,the flowerswill have to be watered if they __
A.have survived B.are to survive C.would survive
D.will survive

3.Is this the reason__ you will late ?
A.because B.about which C.for which D.at which
4.His mother had thought it would be good for his character to __ from home and earn some money on his own.
A.run awayB.take away.C.keep awayD.get away
5.--Did you walk to school this morning?
--No,we went by bus__
A.instead of feet B.instead walking C.instead of on foot D.instead on foot

逐题分析吧.
1.In order to improve English,___
A.Jenney's father bought her a lot of tapes
B.Jenney bought her a lot of tapes
C.A lot of tapes were bought by Jenney
D.A lot of tapes were bought by Jenny's father
根据句子的主语保持一致．先找句子主语,因为谓语为"improve"，所以主语为人，先排除以物为主语的ＣＤ．根据语境，选看Ａ，主语是Ｊenney的父亲，怎么会是父亲要提高英语呢，根据后句应该是父亲想要＂Jenney＂提高英语，前后矛盾，Ａ排除．
综上选Ｂ


2.In such dry weather ,the flowers　will have to be watered if they __
A.have survived B.are to survive C.would survive
D.will survive
这里考察＂be to do sth "的结构．ＣＤ所表达的意思是一样的，可排除．Ａ为现在完成时的时态，表结果，根据语境也不选．而＂be to do sth"则表示将要发生的动作，一般指打算将要发生的动作．
而在这里当然是＂人打算想要花活下去＂．选Ｂ

3.Is this the reason__ you will late ?
A.because B.about which C.for which D.at which
首先题目中will后打少了＂be"
在这里为＂介词＋关系代词＂的结构引导定语从句，介词与从句的动词构成搭配＂be late for"，for which=why
选Ｃ
4.His mother had thought it would be good for his character to __ from home and earn some money on his own.
A.run away逃跑B.take away.拿走C.keep away使离开／不接触D.get away 逃走
根据意思可选出为Ｃ．keep away from ....是．．离开
5.--Did you walk to school this morning?
--No,we went by bus__
A.instead of feet B.instead walking C.instead of on foot D.instead on foot
Ａ缺少成分，ＢD缺少介词＂of"
主要是＂instead of /instead"的区分．
instead of +名词／动名词／介词短语
而＂instead "一般后置在句子末．
选Ｃ