Dad，can I go to the movies tonight?–Sure，but you__come back home before 9 o’clock.

Where is Gary?—He _______ in the library.

Though to see us, the professor gave us a warm welcome.

Who’s ___________ boy in red, do you know? —Oh. He’s ___________ friend of Tom.

Do you know if he _______ to play basketball with us?–I think he’ll come if he __________ free tomorrow. [ ]