The substance reacts （） as fast as the other one.

单项选择题（） he got home, he wrote a letter to me.

A. As long as
B. As far as
C. Ever since
D. The moment

单项选择题The brave soldier would （） yield to such an enemy.

A. as sooner die as
B. sooner die than
C. as sooner die than
D. soon die as much