The DMZ extends about two hundred kilometers ().

单项选择题The（）in the early 1970s worsened an already stagnant economy in Britin.

A.oill crisis
B.high inflation rates
C.lange imports
D.unemployment problem

单项选择题It is well （）the time and effort to learn how to speak English now.

A.express
B.fun
C.worth
D.convenient

单项选择题In learning English we should place emphasispractices.

单项选择题The long poem （）in Anglo－Saxon period was termed England’s national epic.

A.The Canterbury Tales
B.Paradise Lost
C.The Song of

单项选择题As far as I am concerned, some days are lucky while others seem marked by bad () .

单项选择题If you are not satisfied with the room the receptionist recommended，you may say（）。

A.It’s too expensive and it’s not reasonable
B.No，I think I may go to another hotel
C.I don’t like it
D.Could you show me something less expensive？

单项选择题On Mother’s Day，people （）。

A.send some flowers to their mothers
B.wear a pink or red rose or carnation
C.wear a white flower
D.send gifts of love to their mothers

单项选择题What body language is not advised when one meets his interviewer？（）

A.Smile
B.Offer a handshake
C.Stand straight
D.Fiddle with objects

单项选择题He smoking because it does harm to health.

单项选择题Online computer systems help us provide a() service to our customers.