Question

---Jack，you look tired today. What’s wrong?
--- I was _______ busy _______ I didn’t go to bed until midnight yesterday.

A．too；to

B．so；that

C．enough；to；

D．such； that

Answer 1

B

so＋形容词或副词＋that ...引导的肯定的结果状语从句，意思是“如此……以致于……”。