问题
选择题
6.What ______ great progress you have achieved in such ____ short time!
A.a ; a
B./ ; a
C./ ; /
D.a; the
答案
答案:B
6.What ______ great progress you have achieved in such ____ short time!
A.a ; a
B./ ; a
C./ ; /
D.a; the
答案:B