题目内容：
根据下面资料，回答题 提示：Jack去图书馆借书，但没有借书证(1ibrary card)。图书管理员Linda为他办理了借书证，并告诉他每本书可借两个星期，如果需要，可以续借。
Linda: Good morning． 51 ?
Jack:Yes,I want to borrow a book．
Linda : 52 ?
Jack:No,I don't have one now． 53 ?
Linda:Well, please fill in this form first．
Jack:OK．( A few minutes later．)Here's the completed form．
Linda:Thanks．The card will be ready in thirty minutes, and you can take it later．
Jack :Thank you．By the way, 54 ?
Linda : Well, two weeks．But then, you can renew the book if you still need it．
Jack : I see．Thanks a lot．
Linda: 55
第（51）题答案
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