51.Where have you been these days 【解析】由Paul的回答“I've been to France for my holidays．”可知答案应是“Where have you been these days”。

52.How were your holidays 【解析】Paul又回答“Very exciting．”(玩得很开心。)所以Jim应问“How were your holidays”。

53.I've been to France twice 【解析】Jim说：“你很幸运，我从没去过国外。”根据汉语提示可知Paul已去过法国两次，所以答案为“I've been to France twice”。 

54.How long were you there 【解析】下旬Paul说：“我待了将近两周。”所以Jim应问“How long were you there”。 

55.I think my French hasJ improved a lot 【解析】Jim问Paul是不是一直讲法语。根据汉语提示可知，Paul认为他的法语进步很快，所以应填“I think my French has improved a lot”。