完形填空，阅读短文，从每题所给选项中选出可以填入空白处的最佳选项。

　　Mrs Green is going shopping in a new shopping mall．She is going to buy 　　1　　．She is looking for it．Now she is in a very big 　　2　　 shop．There are 　　3　　 people in it．She is looking 　　4　　 one of the sweaters in the shop．And there is a young man 　　5　　 near her．Mrs Green wants to try 　　6　　 the sweater．So she 　　7　　 the young man, ‘ 　　8　　 , are you going to serve(接待) 　　9　　 ? I 　　10　　 a sweater．’ The young man is 　　11　　 and says, ‘I'm sorry．I 　　12　　 serve you．’ Mrs Green says, ’ Of course you can．That's 　　13　　．’ The young man says, ‘It's not my job．I want 　　14　　 , too．’ Mrs Green feels very 　　15　　．

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