题目内容：
I cannot tell the __________difference between the twins.选择一项：
A.
simple
B.
slight
C.
single
D.
slender
参考答案：
选择题：I cannot tell the __________difference between the
- 题目分类：国家开放大学-开放英语4
- 题目类型：选择题
- 查看权限：VIP
选择一项：
A.
simple
B.
slight
C.
single
D.
slender