There are two roads______ to the park along the river. You can take _____ of them.

He didn’t make     clear when and where the meeting would be held.

(2014·江西赣州适应性考试)We should try our best to leave our generation a world better than________we were given.

I prefer a house in a mountain village to________in such a large city as Changsha.

 Cars do cause people some health problems, in fact far more serious _____ than computers do.