问题补充：
Ten years ago the population of our village was that of theirs.
A. as twice large as
B. twice as large as
C. large as twice as
D. as twice as large
答案：
A. as twice large as
(答案→)B. twice as large as
C. large as twice as
D. as twice as large
解析：考查倍数的表达：倍数+as +adj+as结构，先说倍数twice，再加上as large as句意：前我们村的人口是他们村的两倍。选B。
