—Look! The lights in the teachers’ office are still on. Is Mr. Li working?—No. It _______ be Mr. Li. I saw him leave just now.
Kangkang won the first place in the ___ in the school sports meet last week.
We should _______ the school rules as students.
Don’t shout at him. He _______.
—When did your school hold the sports meet? —Last week. And I _______ the girls’ 400-metre race.
—Don’t be late next time! —_______