下列各句中,没有语病的一句是（  ）

Now there’s a system _________ the waste is disposed of using the principles of ecology.

______your Chinese-Russiandictionary—-Sorry, I ______it at home

The accident was really terrible. —Yes, it was. The young man on the bicyclewas too .

______worries her a lot that her husband gets homelater and later. [ ]