Tiger Woods said that he needed to have his attention _____ on being a better husband, father and person.

 After two years’ research, we now have a ____ better understanding of the disease.

It seems quite   to expect a student to master 3000 words within only 2 days.

My new neighbor is a _____ person; he never speaks to anyone and nobody knows where he is from and what he is doing.

(2013·浙江高考)Mary worked here as a ________ secretary and ended up getting a full­time job with the company.