One of the most important questions they had to consider was__________ of public health
Student loan is supposed to provide financial support for people who would ______ not be able to go to college.
The young scientist has made such great achievements in his chosen field ______ nobody else can make.
We were told not to touch the equipment in the laboratory unless ________.
---Where did you first meet your boyfriend?---It was in the department store ______ he worked.
I think you should go back to your ______ plan, which is much more practical than the present one.