用方框中所给单词的适当形式填空，每个单词限用一次，使短文通顺正确连贯，将答案填写在题后的横线上。

   American summers are filled with outdoor picnics, baseball games and swimming pools．Summer in America is a time 　　1　　 the outdoors, no matter how hot it might be．Let's take a look at some of the popular drinks．

　　Lemonade is 　　2　　 of all American summer drinks．It 　　3　　 by mixing lemon juice, water and sugar．It is usually served very cold, with ice．

　　Ice tea is 　　4　　 popular summer drink in America．Ice tea is usually 　　5　　 in a tall glass of ice．Many Americans 　　6　　 to add sugar to sweeten the drink．This drink is often drunk in the afternoon 　　7　　 relaxing in the shade．Ice tea is now also sold by the bottle, at almost any store in America．

　　The Slurpee, a famous American drink in recent years, is a great 　　8　　 to cool off in the summer heat．It is a mix of ice, sugar and fruit juices．However, the drink is mostly made of ice．They can 　　9　　 at most small convenient stores．Slurpees are popular with young Americans．

　　Milkshakes have a long 　　10　　 in America．It is made of a mix of ice cream, milk and flavoring．