His father is a professor and has been teaching in the university for more than twenty years. — _____.

The first question was difficult, but the rest were pretty easy.

You look frozen. Sit down by the fire and I ________ you some hot tea.

“Why don’t you go to the Science Museum?”—“I hear there’s ______ in it.”

I can’t find the bookstore _____ my father bought the book for me yesterday.