Tom ______ be in his office so late that night. I saw him with his friends in the restaurant .
Children long ___ the three-day holiday after the exam.
How __ the weather ___ last Sunday?
This morning when I walked by the park, I saw many children ___ there.
There ____ a sports meet in our school. I will take part in the long jump.
I think this is ___ useful book, so I will keep it for ever.