问题补充:
It came as shock to learn that Bob, one of the top students in our class, failed in exam.
A. /; the
B. a; the
C. a; an
D. /; an
答案:
A. /; the
(答案→)B. a; the
C. a; an
D. /; an
解析:句意:得知Bob,我们班最好的学生之一,在这次考试中没有及格,很是震惊。第一个空,是泛指,故用不定冠词a;第二个空是特指“这次考试”,故用定冠词 the,选B。