曹老师,2022年全国英语乙卷中有这样一个句子,请您帮我分析:Fruit juices, milk-based drinks and most alcoholic drinks are free of
the tax, as are small companies
manufacturing fewer than 1m litres per year.as这部分从语法上有点分析不了,请曹老师点播!
By the time you arrived, I_______, so you don't disturb me.
A: will have slept
B: will have been sleeping
C: will be sleeping
D: will sleep
答案是C,why? A,B为何不可?