听下面一段对话，回答第14至第17四个小题。
第14题：Why is the woman asking for leave?
A. She plans to go to the UK with her parents.
B. She has to take care of her parents at home.
C. She wants to spend some time with her parents.
Bob would have helped us yesterday ,but he .
A.was busy busy
B.is busy
C.had been busy
D.will be busy
今年3月，中国商务部发布公告，正式否决了可口可乐公司对汇源集团的并购案。商务部称，这一否决根据《中华人民共和国反垄断法》相关条款作出，旨在防止可口可乐公司对中国饮料市场可能造成的垄断。从上述案例可以看出，在对外开放条件下，一国经济安全需要
①法律保护②政策护航③企业自觉④外企退出
A．①②B．②③C．③④D．①③
人可以避免“青蛙效应”在于能居安思危，并因“思所以危”而“安”，其哲学道理是
①认识“危”的条件、根源和前景是实现“安”的必要前提
②认识“危”的必然性，则可以安之若素、泰然处之
③认识“安”与“危”的依存、贯通关系，顺应和迎接安危转化的趋势
④认识“安”与“危”的包含、转化关系，努力实现转危为安的趋安避危
A．①②B.②③C.③④D.①④
Where does the conversation most probably take place?
A. In the manager’s office. B. In the room of the guest. C. At the police station.
Why can’t the man concentrate on his study?
A. He keeps thinking of going to the movies. B. His classmates are taking a break.
C. He’s been studying for too long.