27、Eliza remembers everything exactly as if it ______ yesterday.    

A. was happening   B. happens     C. has happened     D. happened      

26、Fred is second to none in math in our class, but       , he hardly passed the final math exam.

       A．as a matter of fact                                                               B．as usual

       C．right away                                          D．believe it or not

25、 ― Goods imported from abroad are ______ those made in China.

  ― Yes. Some of the goods made in our country are of high quality.

     A. always as good as          B. always no better than

     C. not so well as                D. not always better than

24、 I’m certain David’s told you his business troubles. ____ , it’s no secret that he owes a lot of money to the bank.

   A. However      B. Anyway           C. Therefore      D. Though

23、 ____ is known to us all that Obama has been elected President of the USA.

   A. As            B. Which           C. It           D. What

22、 Doing your homework is a sure way to improve your test scores, and this is especially true ____ it comes to classroom tests.

   A. before         B. since            C. when        D. after

21、Having checked the doors were closed, and ____ all the lights were off, the boy opened the door to his bedroom.

   A. why           B. that             C. when        D. where

20、 Animals suffered at the hands of man _____ they were destroyed by people to make way for agricultural land to provide food for more people.

   A. in which        B. for which        C. so that       D. in that

19、 The allowance is only enough to ____ the most fundamental needs such as food and clothing.

   A. convey        B. cover           C. consist       D. confirm