—What are they doing now?—They are busy________articles in the room.
She wants to learn more about American history.She is thirsty________such knowledge.
Try singing some English songs,and you’ll find it interesting________a foreign language.
The more you smile,the________you will feel.
—I can’t stop smoking,doctor. —For your health,I’m afraid you________.
—You should not speak so________.They are doing their homework now. —Sorry,I won’t do it again. A.loud B.aloud C.noisy