The best way to make a kid to be independent is to put him in a position ________ he has no oneelse to refer to[ ]

(2013 ·辽宁五校第一联合体高三考试)It is universally believed that a student with an extremely ________ mind usually gets high scores in the exams, especially in the physics exam.

We slept with the light________ all nightlong last night.

You ______ wear sports shoes when you climba mountain.

．I imagine she hardly ever writes to you, .