Many modern critics of American literature have called Mark Twain, born Samuel Clemens, ______.

A． as America's greatest writer

B． was America's greatest writer

C． America's greatest writer

D． to have been America's greatest writer

[单选题]In many modern countries, children go to school______.A． by free educationB． to be able to marryC． to work for societyD． to rid themselves of "low" work

[单选题]Many American schools offer online programs, and international students __.A． should be careful of being cheatedB． are certain to earn a degreeC． should know about programmingD． are faced with many difficultiesA

[单选题]Computers are very important to modern life．Many people think that in the f

[单选题]Computers are very important to modern life．Many people think that in the f

[单选题]Computers are very important to modern life．Many people think that in the f

[单选题]Computers are very important to modern life．Many people think that in the f

[单选题]Computers are very important to modern life．Many people think that in the f

[问答题]In the modern Western world, many people are too busy to think about eating

[单选题]Many people would agree that stress is a major problem in modern life. It i

[单选题]Many people would agree that stress is a major problem in modern life. It i