You should come to school ____________.

Michael works _______ a farm. His sister works ____ a factory.

Books are helpful _____ us.

Do you always speak English ____ the English corner?

My friend Billy lives _______ China.

He goes to school        the early bus.

In China, the most popular way of        to school is by bike.

Would you like some tea         honey?

----When is your father going to Hong Kong?
---- He is going there         the morning of November 10th.

Where is Jim?
--- He is sending an email ___ his friend.