(2011山东烟台）--- Can a plane fly______the Atlantic Ocean ? --- Yes, but it needs to go ______ the clouds for hours .

(2015·潍坊)You must be careful when you swim________ the lake.

(2015·铜仁)—Excuse me，where is the bookstore?—Go ________ the bridge.You'll see it on your left.

(2014·贵港覃塘区模拟)—Look! A blind man is in the middle of the street.It's too dangerous.—Let's help him go________the street.

We must ________ the road very carefully.

Before going _________ the road, you should look left first and then right.

Look! The man is swimming _______ the lake.

They drove _______ the street quickly, but the police caught them at last.

________ the street and you can get to the hotel.

He _________ the road and then comes to the post office.

Walk _______ the footbridge.

Go _________ the bridge and you will see the station.

You can’t _______ the road when the light is red.

It’s dangerous to swim ________ the river.

She walks _______ the road.

Can you swim _______ the river?

The police led the old man ________ the street.

We walked _________ the forest.

Can the table go ________ the door?

The stream winds _________ the village.

I try to get into the room ________ the window because I can’t open the door.

The tiger is jumping _______ the burning ring.

Shall we walk ________ the field?