阅读理解。根据短文内容判断下列句子的正误，正确的用“A”，错误的用“B”。
It is simple and easy to make a cheese and salad sandwich. First, go to the supermarket and buy all
the necessary ingredients(配料),such as bread, butter, cheese and salad vegetables like lettuce, tomatoes
and cucumbers. You are now ready to make your sandwich.
First, put some butter on one slice of bread. Then cut the cheese into slices and put them onto the
buttered slice of bread.
Next, wash the salad vegetables and cut the tomato and cucumber into thin slices. Place them on top of the cheese together with a few lettuce leaves.
Finally, place a second slice of bread over the top and cut your sandwich into two halves to form
triangles(三角形). Your sandwich is ready.
( )1. We should cut tomatoes into slices to make a sandwich.
( )2. Butter is put only on one side of the bread.
( )3. We must use lettuce leaves to cover the salad.
( )4. We should put two halves of bread together to make a sandwich.
( )5. It's not difficult to make a cheese and salad sandwich.
