Are you busy __ your homework? [ ]

Hey, Jenny! Look at my new jacket. What do you think of it?—– Mmm, its style is very original, but the color doesn’t ______ your trousers.

I don’t know if it _____tomorrow. If it ____, I will stay at home.

What does Jack’s father do? — He is a teacher. He_____maths at a school.

Have you ever seen ____ pen? I can’t find my pen anywhere. –Is it ____blue one? It is under the book.