Look at the boy running on the playground. Is it David? —It ______ be him. I saw him go to the teachers’ office just now.

Timmy often gets full marks in the exams, but he never shows off. He is very ______.

I have broken your glasses. I feel sorry _______ it. [ ]

So far，we_______ lots of English words．

My father is ill . He is still in ______ hospital . I’m going to _______ hospital to see him .