题目内容：
His difficulty in walking ____ a childhood illness.选择一项：
a.
result in
b.
results in
c.
results from
d.
result from
参考答案：
选择题：His difficulty in walking ____ a childhood illness
- 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.
result in
b.
results in
c.
results from
d.
result from