---Do you know if Jim______ to play basketball with us?---I think he will come if he ______ free tomorrow.
Do you think maths is ____________foreign languages?
—Do you know ____________she came to Beijing? —Yes. She came by plane.
Peter didn’t go to Mary’s birthday party because he was _____________then.
Jack bought a ____________in a shoe shop yesterday.
The teacher said to his students, “Don’t forget ________your dictionary to school tomorrow.”