18、Good ways of doing things mean saving time, and ________it is necessary for us to find them．

A．therefore           B．however            C．still         D．otherwise

17、Pleasant as they made it ____, we felt tired after the long journey．

A．travel          B．to travel            C．traveled           D．traveling

16、I’m very grateful for your help and hope that someday I may be able to do something for you_____．

A．in exchange           B．in charge         C．in return         D．in turn

15、I have no dream____ to have a happy life．

A．other than           B．rather than             C．more than          D．less than

14、---- What do you think of Julia?

---- She could be a very attractive girl, but she ______ no attention to her dress．

A．paid         B．was paying           C．pays        D．had paid

13、The five firemen the director had ____ the five people in fire were highly praised．

A．rescue        B．rescued        C．to rescue        D．had rescued

12、By the year 2015, the world population will be _____ today．

A．as twice as what it is                    B．twice what it is

C．twice as it is                      D．twice of what is

11、It is ______fashion differs from country to country _____may reflect the cultural differences from one respect．

A．/, that         B．that, /         C．how, that         D．that, that

10、The meeting was to ____ at 9 o’clock, but the manager ____ until twenty minutes later．

A．start; didn’t turn up                          B．start; hadn’t turned up

C．have started; didn’t turn up                    D．have started; hadn’t turned up

9、---- Oh, my goodness! My laptop must have got stolen．

---- But where _____ a thief have entered the house with all the doors and windows still locked?

A．should        B．could         C．dare         D．did