下列各句中，没有错别字的一项是（ ）

n fail at times, but _______ makes adifference is one’s attitude towards life.

The number of traffic accidents caused bydrinking is ____ as the number of those caused by non-drinking driving

_______ the difficult maths problem, she has consulted Professor Liu several times.

Before the storm,fishes in the pond usually________themselves out of the water to get fresh air.[ ]