2道简单的英语单选

问题描述:

2道简单的英语单选
1We hid behind the door ,listening___the sound of the guards footsteps.
A at B for C in D to
2The train to Shanghai from Chongqing will certainly go through Yingtan___it will go through Guiyang.
A as B since C and D but
请解释一下这句话的意思
As she walked round the store,Edith___(A reflected/B wondered Cworried)
第3题应为
As she walked round the store,Edith___(A reflected/B wondered/Cworried)how difficult it was to choose a suitable present for her father.
书上的答案是1.B 2.A 3.A

第一个答案之所以是B:for
我认为是强调目的关系
为了去听声音,所以我们躲避起来
第2个:As表示"也"的意思
第3个:表示反映过来,C是VI