There is a post office _____ the street corner .

---When can you come to school this afternoon ? ---______ about seven .

Some people are walking _______ the bridge and some boats are going _______ the bridge.

There is a wooden bridge ______the river _______ my house.

You really don’t have to worry ________ your weight. You look just right.

Could I have an early morning call ________six o’clock tomorrow?

Sam likes trekking_______the jungle, because he thinks it's exciting.

— Why are you standing, Alice?
—I can’t see the blackboard clearly. Two tall boys are sitting_______me.

Another tunnel from Saihongqiao to Gupinggang will be built        two years.

I think it's better for supermarkets to provide children _____ a playroom