Is it your brother playing football outside? — It ________ be him. He is helping mother with dishes now.

We saw the dog jumping into the room_____ window. [ ]

Did you take part in the sports meeting last week?—Of course I didn’t, don’t you know that it was ______ because of the rain.

Eddie hase-dog at home．

When and where shall we meet tomorrow? —Let’s _______ it 3:00 p. m. at my home.