Life is about waiting for the right moment_____, because everyone is in his own TIME ZONE.
选择一项：
a. to act 解析：句意：生活就是等待合适的时机去行动，因为每个人都在自己的时区。考查动词不定式作目的状语。acting现在分词；to act动词不定式；act动词原形；acts动词三单。分析句子可知，此处应用动词不定式形式在句中作目的状语。。
b. acting
c. acts
d. act