-Have you seen Mr. Black these days, Jack?-Yes, I met him when I ________ in the street yesterday.
﹣Let’s play soccer. ﹣Good idea! Do you have __________ soccer ball? A. a B. an C. 不填
– What did that lady ask you just now? - She asked me______.
-______ you leave so soon? -Yes. I have to catch my plane.
I was late for school because my alarm clock didn’t ______this morning.
- How was the performance last night? - It was so good. Though it ______ nearly four hours, few people left early.