_______ on the American Civil War, the b
题型:选择题
问题:
_______ on the American Civil War, the book attracted a large number of readers when it was published.
A.Based
B.Basing
C.Having based
D.Being based
_______ on the American Civil War, the book attracted a large number of readers when it was published.
A.Based
B.Basing
C.Having based
D.Being based