—What’s the low-carbon life style like? --Save_______ energy, produce ________ carbon.

Lucy is ________ of the two.

---How delicious the coffee is! ---That’s right. It will taste ______ with milk.

The actress is already 50, but she looks ______ than she really is.

--What do you think of Lady Gaga?--Maybe she is one of ________ singers in the world.