【B12】A．agoB．beforeC．sinceD．once

A．AfterB．BeforeC．SinceD．Behind

A．afterB．beforeC．sinceD．till

【C19】A．the momentB．beforeC．afterD．once

A. once B. whileC. since D. unless

You the Inception since I remember once you disc

【B4】A．afterB．beforeC．sinceD．when