Question

Trees are good for human being. We can’t plant them __________ many.

A．so

B．such

C．too

D．enough

Answer 1

C

副词辨析。Such不能修饰many，enough修饰副词时，放在副词之后，所以排除B,D；so  many如此多；too many太多，句意：树木对人类有好处。我们种植多少都不过分。句子要表达肯定意义，所以选C。