1. Even after a century of ____ investigation, the relation of the solar cycle to terrestrial weather remains ____ .
A. meticulous - apparent
B. cursory - clear
C. sedulous - pertinent
D. extensive - enigmatic
E. scientific - unobscured
2. There is great unevenness in his later plays; there are moments of the greatest ____ in the midst of great ____.
A. lucidity - enlightenment
B. frivolity - triteness
C. insight - banality
D. obscurity - ambivalence
E. profundity - wisdom
3. According to Hume, it is not logic that determines what we say and do; if we decide to help a person in need, we do so because of our ____ not our ____
A. consciousness - emotions
B. duty - rights
C. feelings - reason
D. beliefs - convictions
E. concern - kindness