_______ on the American Civil War, the book attracted a large number of readers when it was published.
#92337
A
Based
B
Basing
C
Having based
D
Being based
推荐题目
I find painting and listening to music _______.
#95023
A
relaxing
B
is relaxing
C
relaxed
D
are relaxed
    hardly made Allen pay any attention to correcting his mistakes.
#96897
A
scolding
B
To be scolded
C
Being scolded
D
Having scolded
While watching television,          .
#88583
A
the doorbell rang
B
the doorbell rings
C
we heard the doorbell ring
D
we heard the doorbell rings