71：所有格"it's"是不是一定要加所有格符号？

QUESTION 71:    Should the possessive "it's" always have an apostrophe? as in "I saw a cat.    It's eyes were green".
    
ANSWER: The possessive adjective is "its" and not "it's".
"I saw a cat and its eyes were green." -- CORRECT
"IT'S" is a contraction of the verbs IT IS or IT HAS:
"It's raining outside" or "It's been cold lately"

问题71：所有格"it's"是不是一定要加所有格符号？ 比如："I saw a cat. It's eyes were green."

回答：形容词性的物主代词是"its"而不是"it's"， 所以，"I saw a cat and its eyes were green."才是正确的。
It's是IT IS 或者IT HAS的缩写形式，如："It's raining outside" 或是 "It's been cold lately".