A modern city has been set up in   ___    was a wasteland ten years ago.

A. what           B. which          C. that            D. where       

It will be about three years          next Olympic Games are held.

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

We were on the point of discussing financial investment_____ the telephone rang unexpectedly.

A. while                             B. when                       C. as                           D. once

The process of producing electricity may also give out CO2, _______ you heat your house with electricity instead of charcoal.

   A. even if                       B. as long as               C. as if             D. as soon as

Now my hometown is not at all _______ a traveler who visited it ten years ago can expect.

   A. that              B. what                C. which                D. where

When the environmentally friendly cars came onto the market, many people were eager to buy them ________ the price.

   A. wherever            B. however                  C. whichever           D. whatever

—I got an email from Susan,  ______ said W#W$W%.K**S*&5^Ushe was going abroad for sightseeing.
   —Fantastic! That’s what she has been dreaming of.
   A. which         B. she             C. who             D. it 

—He is eager to try something he has never tried before.

    —Oh, I see. That’s _______ he’s different from others.

A. when               B. where     C. how       D. what

The process of producing electricity may also give out CO2, _______ you heat your house with electricity instead of charcoal.

   A. even if                       B. as long as               C. as if             D. as soon as

China will have to consider _____ it wants to be viewed by the rest of the world when it exercises its influence as a major power.

A. when              B. how              C. what           D. which