This is usual way of solving the problem. Can you think of unusual way?A. a; a B. a; anC

发布时间：2020-08-22 02:15:12

This is      usual way of solving the problem. Can you think of      unusual way?
A. a; a
B. a; an
C. an; an
D. an; a

网友回答

A. a; a
(答案→)B. a; an
C. an; an
D. an; a
解析：本题考查的是不定冠词an和a的用法，当第一次提到某物时，要用不定冠词a或an，第一空后接的usual的首个音标为辅音音标，用不定冠词a，而后一空的unusual的首个音标为元音音标，故用不定冠词an，故选答案为B
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