Climatic shifts are so gradual as to be indistinguishable at first from ordinary fluctuations in the weather.
(A) so gradual as to be indistinguishable
(B) so gradual they can be indistinguishable
(C) so gradual that they are unable to be distinguished
(D) gradual enough not to be distinguishable
(E) gradual enough so that one cannot distinguish them
Official Answer: C
Can anybody please explain that when do we use So X as to [Verb] and when we use So X that Y?
Is there any difference between the two?
(A) so gradual as to be indistinguishable
(B) so gradual they can be indistinguishable
(C) so gradual that they are unable to be distinguished
(D) gradual enough not to be distinguishable
(E) gradual enough so that one cannot distinguish them
Official Answer: C
Can anybody please explain that when do we use So X as to [Verb] and when we use So X that Y?
Is there any difference between the two?












