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17. It’s believed that workers in the third World______________________.

A. don’t earn as much money as in Europe B. earn less money than Europeans do

C. don’t earn so much money so those in Europe D. earn much more money than Europeans do

18. _________ the customer complained,_________ and _________ the manager become

A. the more-the less rule- more unpleasant B. The less- the ruder- the least unpleasant

C. The less- the less rule- the least unpleasant D. the more-the ruder- more unpleasant