A foreign visitor is coming to visit our new house this evening. My mother will offer him _______ to eat. 

_______ is important for us to learn English well.

--It snowed heavily last night. Is ______here today?---Yes,and ______of us was late for school this morning.

What we need is a patient teacher, __________ who listens to us students.

There me two maps on the wall: one is a map of   China, and ______ is a map of the world.