—What a nice watch it is!  —Yes. It’s _________ one of all. 

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

-What do you think of his concert? -Oh，no one does____．

—Need I wash your car after repairing it?—Yes, that would be much _    .

I hope there will be ____ cars and ____ pollution in the future, thus people will live longer.