听短文，写出所缺部分，每空不超过三个单词

    The vegetable salad is nice and .is also good for healthof American people have it every day. In our program today, I'd like to tell you how to make it. First. you need to buy three or four kinds of vegetables, like lettuce,and so on. Anything you like. Remember the most important thing:Clean all those vegetables in the water carefully and then cut them up. After that, put the vegetables in a bowl. To make it more delicious, pour some into the bowl. Finally, mix them all up. That's all. In our next program, I' 11 tell you how to make See you tomorrow at the same time.