He continues to talk to the guest and listen to him, but leans forward and grasps the arms of the chair as about to push himself upwards.
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【正确答案】 1、正确答案：衔接词错误，应在as后加上if／though。    
【答案解析】解析：根据上下文语境，这里的意思是“好像，好似”，而不是“当……的时候”，否则逻辑上说不通。本句的意思是“他继续和客人谈话并倾听对方的回答，但同时向前探着身子、紧紧抓住椅子把手，好像要把自己往前推。”