You may keep the book for one more week no one else needs it.A. provided that B. so that C

问题补充：

You may keep the book for one more week no one else needs it.

A. provided that

B. so that

C. in order that

D. in case

答案：

(答案→)A. provided that

B. so that

C. in order that

D. in case

解析：考查连词用法。provided that=if如果；B以至于；C为了；D以防；句意：如果没有别人需要这本书，你可以多借一个星期。故A正确。