30.Maybe Jack has forgotten our appointment completley. I ____ him to call for the past two hours.

A.have been expecting  B.have expected     C.have been expected  D.expected 

二 完型填空

More and more electronic devices and services in our daily life mean we have too many passwords and numbers to remember . Passwords help us protect our 21  and privacy , however , however ,they also bring us a lot of 22  .

   Every day I need to remember much 23  information . Every morning I 24  my cellphone  - it needs a password . I get to work and I have to have 25  my computer with a password . Like many people in Britain , I have two bank 26  . One needs a five-digit number and a password ; 27  needs a six-digit number and a memorable place name . I have an online savings account that needs a different password 28  the password for my bank account .

    29  you never use a computer , you can be 30  by the password overload . Look in your wallet . Your probably 31  four or five credit cards . In these days of chip and pin , these are virtually useless if you do not have the magic four-digit numbers . The banks 32  you not to have the same number for all your cards . Give me a break . Am I going to carry five different random (随机的) four-digit numbers in my head ? 33  , I’m not Good Will Hunting .

   I’ve tried systems to help me 34  - such as using the names of favorite films or members of my extended family ; but none seems to 35  . So what is the solution ?

   If you are a technical expert , you can download a “ password safe ” . These are programs that 36  all your passwords so they can be used for accessing sites . The problem is that you can only use this on your home computer , and if that get 37 you are in trouble .

   Some of the banks are starting to 38  customers a “ dongle ( 适配器 )” , which is a portable password device that plugs into your computer . This is an electronic version of writing the password down on a piece of paper . The 39  is that dongles cost money and if the one your bank gives you doesn’t let you store other websites’ passwords , you could 40  carrying a dozen dongles in your pocket .

   Well , putting all your cash in a box under the bed never seems so attractive .

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