为以下句子添加适当的标点符号和大小写字母，使其成为完整的句子。
1）hello how are you
2）can you help me find my keys
3）i love to eat pizza
4）what time does the movie start
5）where is the nearest gas station
1）Hello, how are you?
2）Can you help me find my keys?
3）I love to eat pizza.
4）What time does the movie start?
5）Where is the nearest gas station?