单项选择题
A.in itself
B.to itself
C.by itself
D.of itself
单项选择题 In（）to your inquiries, we regret to inform you that we can’t help you in this matter.
单项选择题 It is not surprising if in these conditions people behave aggressively towards each other；it is impossible for them to behave（）
单项选择题 I thought things would get better, but（）it is they are getting worse.