Lucy liked all the dresses there，but she took the ______one to save as much money as possible for Project Hope.

—We're doing a lot to protect our environment, but it is not good enough. —So we should try______ to look after it.

─Which dress is _____, the blue one or the yellow one?─It depends on you. 

Wang Tao lives the _______ to school of all my classmates.

---Ann, I’m worried I’m getting fatter. What shall I do?---I think you should eat          food and do more exercise.