To：

liming 123@sina. com

From：

ronnie@hotmail. com

Subject:

Tips for a trip to San Francisco

Hi, Li Ming,

    I'm glad that you are coming to San Francisco next month. But I think there is still something I should let you and your friends know before you leave.

    First, bring a warm jacket and sweater so that you're prepared for changes in the temperature. Even in the summer months of July and August, it gets cold.

    Second. many of the city only accept prepaid（预付款的）calling cards. So a prepaid phone card is needed. I suggest you buy one at the airport.

    Third, it's not easy to find a hotel room when you arrive. Hotels fill up quickly in San Francisco all year, especially is summer. You'd better book your room before you come.

    One more thing. San Francisco is a great walking city but there are hills！Bring a comfortable pair of walking shoes if you're planning to go around on foot.

    Lastly, there are many wonderful cultural activities in San Francisco year round. Use the Internet to get the latest information about the activities at the time of your visit.

Wish you a pleasant trip.

Things you need to bring

Some  clothes for cold weather.

A pair of  shoes for going around.

Things you need to do

Buy a  card at the airport.

, a hotel room before you leave.

 the latest information about the cultural activities in San Francisco.