懂高中英语的进说下为什么?谢谢1.--youseemtohavehadthatcarforyears.--Yes,IshouldsellititstillrunA.beforeBafterC.untilD.while2.Ipromisethatshegetanicepresentonherbirthdayparty.A.should

Question

懂高中英语的进 说下为什么?谢谢
1.--you seem to have had that car for years .
--Yes , I should sell it ____it still run
A. before B after C. until D. while
2. I promise that she ___get a nice present on her birthday party .
A. should B.would C. shall
为什么第二个选 shall 答案是这样但没有解释

Answer 1

1:D 选while,while是：当.的时候,翻译为：当它仍然能运行的时候,如果选before,是：在它能运行之前,其他2个选项都不make sense.
2:B,这个是个过去讲来时,或者可看成虚拟语气,用过去事态,C肯定不对,剩下A,B；而A,Should除了是Shall的过去事态以外,还可以翻译为：应该,所以如果选择A,变成：我许诺她应该可以得到一个不错的礼物,意思上不通,选择would对,would是will的过去时,翻译是：她将会得到一个不错的礼物.而且问过老外,同样得出同样答案.