问题
选择题
. _____ the book four times, I finally understood the author's theory.
A．Reading
B．Having read
C．To read
D．Read
答案
答案：B
搜题请搜索小程序“爱下问搜题”
. _____ the book four times, I finally understood the author's theory.
A．Reading
B．Having read
C．To read
D．Read
答案：B