题目内容：
His friends are not happy with him because he always turns down their invitations （ ） ill health.选项
A:on the ground of
B:on the strength of
C:in view of
D:by means of
参考答案：
选择题：His friends are not happy with him because he alwa
- 题目分类：综合英语
- 题目类型：选择题
- 查看权限：VIP
选项
A:on the ground of
B:on the strength of
C:in view of
D:by means of