Question

---Lin Kai, hand in your homework, please.
---Oh, sorry. I ______ it at home this morning.

1. A.
   was leaving
2. B.
   has left
3. C.
   will leave
4. D.
   left

Answer 1

D
考查点：考查时态。解题思路：根据句中时间状语this morning表示过去的时间，可知用一般过去时态。故选D。