those troublesome messages, you’d better not give out your number to anyone whom you don’t know.
A. Avoiding
B. Avoided
C. Having avoided
D. To avoid
网友回答
A. Avoiding
B. Avoided
C. Having avoided
(答案→)D. To avoid
解析：句意：为了避免这些烦人的信息，你最好不要将号码泄露给不认识的人。根据句意可知这里需要目的状语，几个选项只有不定式可以做目的状语，所以选D。