We are certain that tea was used as a drink when it was applied as medicine and food.（ ）
举一反三
- When cocoa was first introduced to Europe ______, it soon became fashionable. A: as a drink B: as a gift C: as food D: as a medicine
- Tea is used in traditional Chinese medicine as well as in .
- Tea only shifted from food to drink ____ years ago.
- When we use the word（）we mean that an idea or theory is being applied: that whatever the teacher does, certain theoretical principles are always borne in mind.
- I used to drink a lot of tea but these days I ______ coffee.