练习：cross, across, through1. We must _ the road very carefully.2. Before going _ the road, you should look left first and then right.3. Look! The man is swimming _ the lake.4. They drove _ the street quickly, but the police caught them at last.5. The sunlight comes_ the glass.6. _ the street and you can get to the hotel.7. He _ the road and then comes to the post office.8. Walk _ the footbridge.9. _ the footbridge.10
