23、I wonder what it feels like to be one of          really rich．The Browns already have two Rolls Royce and now they are buying        third.

A．the; a          B．the; the          C．/; a           D．/; the

21、No sooner _______home than the telephone rang．

A．he had arrived          B．had he arrived         C．he arrived           　　D．did he arrive

20、I will never go to his house unless_______．

A．I invite           B．I will be invited           C．invited           D．I was invited

19、__________ all day at home writing, the novelist went out for a walk in the evening．

A．Spent                                                       B．Spending

C．Having spent                                             D．Having been spent

18、They went to the concert ____________bad weather．

A．though                  B．although                C．in spite of              D．despite of

17、The old man enjoys collecting signatures of famous people _______ famous paintings．

A．with preference of                                    B．in preference to    

C．in preference for                                        D．with preference to

16、I hate ______ when people talk with their mouths full．

A．this                 B．that                 C．it                      D．these

15、After living on campus for more than one year, we have ________here．

A．accustomed to studying                     　　B．accustomed to study

C．been accustomed to studying               　　D．been accustomed to study