加横线的词中与其他三项的用法不同的一项是（ ）

Some special projects are ________ to protect our environment, so we may be _____ to having a clean and beautiful home in the near future

The daytime of the summer is longer than _____ of the winter.

The number of cars growing larger and larger in Beijing.— But the traffic problem is than it used to be.

ays some hospitals refer to patients ________ name, not case number