一篇英语阅读理解.请给在下这个菜鸟讲解一下这篇短文,阅读以下短文,选择最佳选项Londonhassomefantasticsightsforeverytourist.Butjust__1_backdoesthiswonderfulcity'shistorygo?ItwastheRomanswhodecidedto
一篇英语阅读理解.请给在下这个菜鸟讲解一下这篇短文,
阅读以下短文,选择最佳选项
Londonhassomefantasticsightsforeverytourist.Butjust__1_backdoesthiswonderfulcity'shistorygo?
ItwastheRomanswhodecidedtobuildthecityweknowtodayasLondon.TheyinvadedBritaininAD43,andsoonafterwardsbuiltthecityofLondinium.Theysawthatacitywithabridge__2__theThamesRiverchouldbeuseful,bothfortravelingtoEurpoeandtravelinginEngland.Itisthoughtthattheoriginalcitywassmall---aboutthe__3__ofHydePark!
1.A.howfarB.howsoonC.howlongD.howmuch
2.A.underB.overC.onD.in
3.A.shapeB.heightC.styleD.size
答案是ABD,请问为什么要这样填,特别是第一、二题,