419. The artist, often so ______ as to seem unapproachable, tended to be more relaxed and easygoing when among friends.
A. generous
B. creative
C. sympathetic
D. reserved
E. reasonable

420. For centuries, Mars has been called the "Red Planet", but the designation is ______ , because Mars is not precisely red.
A. a technicality
B. a misnomer
C. an epigram
D. an understatement
E. a platitude

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