Where did you get to know her? —It was on the farm _______ we worked.

The air quality in Beijing as well as in the neighboring cities we once spent much time____ better and better

Amy was not sure _______________________.

The subway was crowded with passengers going home from market, most of ________carrying heavy bags and baskets full of fruits and vegetables they had bought there.

I’m so hungry. Please give me ______ to eat