What would you do if you won the lottery? — I would give it_____ medical research.

The road back home may be difficult before the Spring Festival, ______ the desire to get together with family members can never be stopped.

This isn’t ______ iPad, mine looks the same as ______ .

Mary, whose photo is it?—It ______ be Lu’s. Those are her parents.

What would you like to eat?—, please.