________ of shoes do you take—I take size 37.

As the saying goes: Knowledge is powerful. For us students, we should try our best as much as we can ____ it in order to achieve our great Chinese Dream.

下列加横线字的解释有误的一项是（ ）

下列句中加点词的活用分类正确的一项是①亦一奇也②掠江东南去⑨良庖岁更刀④项王军壁垓下⑤项王乃复引兵而东⑥燕赵之收藏⑦后人哀之而不鉴之⑧不冠不袜

To keep healthy, she _____cycling as a regular form of exercise after he retired.