Question

(   ) 3.    —What are you doing?

—I'm       the key to the door.

   A. finding out   B. looking after

   C. looking for   D. finding

Answer 1

3. C find out意為“找出，查明”；look after意為“照顧”;look for意為“尋找”;find意為“發現”。答句句意：我正在尋找門的鑰匙。