单项选择

• 1、

  If you are ______ about Australian cities, just re

• 2、

  Many countries are increasing their use of natural

• 3、

  They were surprised that a child should work out t

• 4、

  When I handed the report to John, he said that Geo

• 5、

  Sir, you ______ be sitting in this waiting room. I

• 6、

  We are all going to the games. Why don't you come

• 7、

  While shopping, people sometimes can't help ______

• 8、

  --The cars give off a great deal of waste gas in t

• 9、

  ______ the poem a second time, the meaning will be

• 10、

  If I knew the answer, I wouldn't be asking, ______

• 11、

  When he was there, he ______ go to that coffee sho

• 12、

  The thing that ______ is not whether you fail or n

• 13、

  -- Oh, it's you! I ______ you. --I've just had my

• 14、

  Yesterday, Jane walked away from the discussion. O

• 15、

  Some people would rather ride bicycles as bicycle