请问用动词的正确时态填怎么填?

题目

请问用动词的正确时态填怎么填?
I ——（just have）my lunch,I __(have) it at school.
the boy__(listen) to the click of the rails,suddenly there__ (be) a break in the singing of the rails.

答案

第一个空填:have just had
第二个空填：had
2.was listening was
保证准确率~