问题补充:
By the time he was 38, he had become principal of university.
A. /; an
B. /; a
C. a; an
D. a; the
答案:
A. /; an
(答案→)B. /; a
C. a; an
D. a; the
解析:可联系答案网客服索取此答案。
时间:2019-04-22 18:11:20
By the time he was 38, he had become principal of university.
A. /; an
B. /; a
C. a; an
D. a; the
A. /; an
(答案→)B. /; a
C. a; an
D. a; the
解析:可联系答案网客服索取此答案。