问题补充：
The old man is so that he has to his meals every day.
A. forgettable; be reminded of
B. forgetful; be remembered of
C. forgetful; be reminded of
D. forgettable; be remembered of
答案：
A. forgettable; be reminded of
B. forgetful; be remembered of
(答案→)C. forgetful; be reminded of
D. forgettable; be remembered of
解析：考查形容词和动词被动语态。Forgettable容易被忘记的； forgetful 健忘的，好忘事的；动词短语remind sb of sth提醒某人某事；句意：那个老人是如此的健忘以至于每天他不得不被提醒吃饭。故C正确。
