A girl ____ a Li Ning tracksuit came into our classroom.
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.
The job is not very profitable ________ cash, but I can get valuable experience from it.