Fill in the gaps with the correct particles.

Our school basketball team was looking ___________ the match with the opponents.
Mia has been looking _______ a bigger backpack.
If you have no idea where the site is, look it ________ in the guide book.
Steve and Jo are looking _______ their sister's boyfriend.
Sandy looked _________ on her new classmates, but then she liked them.
Sam is looking _________ Barbara in the garden.
Look _________ on me when you're in the city.
Helen and Adam should look ________ their grandparents.
The landlady asked us to look _________ her dog while she was away.
Never look ________ if you want to be happy.
George, look ______! The bus is coming!
The doctor looked ________ again yesterday.
Nancy looked ________ on James.