In the early morning all of us stood at the top of the mountain east of the city, watchin

In the early morning all of us stood at the top of the mountain east of the city, watching burning sun rising.
A. /; a
B. the; a
C. the; the
D. /; the

(答案→)A. /; aB. the; aC. the; theD. /; the解析：考查冠词。East作为方位副词时，单独使用，不需要任何冠词。当sun,moon前面有形容词修饰时，可以使用不定冠词。如a red sun一轮红日；句意：在清晨，我们都站在城东的山顶上，看着一轮红日在升起。

正好我需要