1. Joe is (an ) honest boy.He never tell lies.        2.There is (a  house at (the ) foot of (the ) hill.His father is living there. 3.(/ ) shanghai has a large population,and it is (the ) largest city in china.                                                            

    4.(The ) old woman has has two children,(a) son and (a) daughter.                                                                          

     5.(The ) rich wish to be richer,and (The )poor fear to be poorer.     6.He has tried twice,and he is asked to have(a )third try.                   7.Tom enjoys playing(/ )football while l enjoy(/ )music. l can play(the )piano very well.               8.The doctor let me have(an )X-ray examination.            9.(The )Great Wall of china was built in(/ )Qin Dynasty.      10.What's (the ) date today?lt's July (the )fourteenth.
   

分析： 元音前用an ,輔音前用a ,注意固定用法,還有第6道：序數(shù)詞前用a,表示‘又一,再’ 

祝你假期愉快!加油!不明白再問!如果幫到你,請(qǐng)采納,謝謝!