Dear Adonis You do not need to repeat the noun at the end of a "too" phrase (it is an adjectival phrase).. It is so small that I can't see it = It is too small to see The stone is so heavy that the young man can't lift it. = The stone is too heavy to lift For that reason, your third example is quite right..
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.