n, you look blue. What’s wrong—There are so many papers _____. I’m really busy recently.

Rose, I’m making your favorite chocolate cake. — Thanks, Mom. I know it from the ______ from the kitchen.

Lucy, is maths difficult to learn in a foreign school—I’m not sure, but no subject can be learned well __________hard work.

They have hamburgers _______ lunch.

little acquaintance_______ music , while he has a wide knowledge ____ painting