1 He worked hard until late into the night ,---- his lesson

1 He worked hard until late into the night ,____ his lesson .a being prepared b.preparing 为什么选b不选a 说明理由 2.They stood there _____ at one another for adout half hour a glaring b.to glare 为什么选a不选b 说明理由 3.We walked as fast as we could ,____ to catch the 9:00 train.a.hoping b.being hoped 为什么选a不选b,说明理由.'之'字的用法 1 徒倚久之而归.2何功之有哉?3 之二虫又何如 指出下列词类活用现象 1 岸土赤而壁立 2 掠江东南去 3 千干云霄 4 晚泊沙夹