The science of computer, __________ rapid progress has been made in recent years, is the most important in all the science.
A. . to which
B. . in which
C. . off which
D. . from which
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________ the scandal among his colleagues, Mr. Williams would have been promoted to the position as director.
A. . If he did not spread
B. . Had he not spread
C. . Did he not spread
D. . Should he not spread
Malcolm X would rather be fully occupied with copying a dictionary and reading aloud __________ the time away in prison.
A. . more than to idle
B. . than idle
C. . rather than to idle
D. . more than idling
A pen is to a writer __________ a gun is to a fighter.
A. . as
B. . what
C. . that
D. . like
________, Malcolm X would not have been able to join the world community of thoughts and actions.
A. . If he didn’t study English very hard through self-learning
B. . Were he to study English very hard through self-learning
C. . Had he didn’t study English very hard through self-learning
D. . Hadn’t he studied English very hard through self-learning