1．(2019年北京卷·语法填空)The students benefitting most from college are those ________ are totally engaged (参与) in academic life, taking full advantage of the college's chances and resources (资源)．
2．(2019年浙江卷·语法填空)On the edge of the jacket, there is a piece of cloth ________ gives off light in the dark.
3．(2019年江苏卷·单项填空)We have entered into an age ________ dreams have the best chance of coming true.
4．(2019年天津卷·单项填空)Their child is at the stage ________ she can say individual words but not full sentences.
