The study of natural history is not something to be left to biologists. In fact, their capacity _________ the time they can spend away from their offices is very limited.
(届陕西省商南高级中学高三第一学期三模英语试卷)
Some students are now busy preparing for the “Independent Recruitment(自主招生)” contest, in hopes of getting a “Pass” card at their first _______.