单词拼写：根据首字母提示写出单词，使句意通顺。

1. A train is going t_______ a tunnel.

2. S______ we bring paper plates and forks?

3. Walk p______ the police station, turn left and walk on.

4. From the park, walk a______ the field, and you'll see a theatre.

5. When the t______ lights are red, the cars must stop.