过去进行时描述正在发生的动作 — 英语选择题
题目
At 3:40 yesterday afternoon, the rainstorm hit the small town. Lily began cooking lunch at 3:20 and finished at 4:10. When the rainstorm hit, Lily ______ lunch in the kitchen.
A. cooked
B. was cooking
C. cooks
D. is going to cook