——Your coffee smells great!——It’s from Mexico. Would you like ______?
It was in the lab ______ was taken charge of by Professor Harris _______ they did the experiment.
This nice magazine _____ your brother.
The restaurant is _________my uncle.
Can you believe that in ____ a rich country there should be ___many people.
---The window is dirty. ----I know. It ______ for weeks.