Question

The teacher asked a second question ________ I could answer the first one．

1. A.
   before
2. B.
   after
3. C.
   when
4. D.
   as

Answer 1

A
解析：
本句意为：“我还没来得及回答第一个问题，老师就又问了一个问题”。只有A项有“……才；
……就”的意思。