【正确答案】 C

【答案解析】根据前后搭配及语意关系，looking为正确答案，意为“看待”。glance与at搭配，但意为“瞥一眼，看一眼”，如：I glanced at the envelope and recognized my father's handwriting．(我瞥了一眼信封，认出是我父亲的字体。)get at意为“拿到；弄清楚”，如The book is very hard to get at．(这本书很难懂。)work at意为“学习，致力于”，如：He is working at a new invention．(他正致力于一项新发明。)