since it is already midinght,we_______

题目

since it is already midinght,we_______
A)had better leaving
B)ought to have leave
C)should take our leave
D)might as well leave
请说明选择的原因,为什么不能选B和C
2)i wonder if he_____us,and i think if he______us we'll be able to complete the task ahead of time
A)helps,help
B)will help,helps
C)will help,will help
D)helps,will help
请说明选择的原因,为什么不能选别的答案,并帮我翻译全句

答案

D 第一题A选项应该是had better leave B选项如果是ought to have left 应该是表示本应该做而实际上没做的事情,C 搭配不行,D might/may as well表示不妨做某事
B 第二题前半句中的if 是表示是否,而后半句才是表示如果,条件状语从句,用一般现在时表示将来时
意思就是我想知道他是否会帮助我们,我想如果他帮助我们的话,我们就可以提前完成任务