Is considered/regarded to be unidiomatic??? Before the

Question

Is considered/regarded to be unidiomatic??? 

Before the 17th century, meancholy was regarded  to be a disease caused by an excess of black bile in the body and one  characterized by delusions, hysteria, distemper, and paralysis.
A..
B. to be adisease, one caused by an excess of black bile in the body and
C. a disease, an excess of black bile in the body caused it, and it was
D. as a disease, being caused by an excess of black bile in the body and
E. as a disease caused by an excess of black bile in the body and 

==>E is obviously the best choice, but I thought regarded "to be" was unidiomatic and should be "regarded" + subject like (C), although (C) is awkard and "it" has no referent..

When first introduced into North America, the tomato was  regarded that it was poisonous  and was planted only as an ornament. 
A. 
B. considerd to be poisonous 
C. regarded as being poison 
D. considered poisonous 
E. regarded to be poisonous 

==> in this case the answer is D...so how do the 2 questions compare?? when do you use "to be"???

AdrianG · Answer

In GMAT plz avoid to use "to be".

Two following forms are correct:

1.regard as
2. consider + subject

Caas · Answer

Regarded AS is idiomatic. Ex: she is regarded as an expert.
So the first answer is E.

"Consider" never takes "to be" on GMAT.
I consider him an intelligent person.

forgmat · Answer

To be form is always avoided in GMAT. E seems as the best answer, it avoids to be form and maintains a parallel structure.

vc019 · Answer

A. to be a disease caused by an excess of black bile in the body and one – “One” is redundant. B. to be a disease, one caused by an excess of black bile in the body and - “One” is redundant. C. a disease, an excess of black bile in the body caused it, and it was – Wrong idiom D. as a disease, being caused by an excess of black bile in the body and – “ing” Verb tense. E. as a disease caused by an excess of black bile in the body and – Correct Verb + Correct idiom A, B - Eliminated because one is redundant. C - Wrong 'coz the idiom is by X and Y Now comes the devil as always

Left with D & E D - uses the correct idiom. BUT uses "ing" and being - is redundant in this option. E - uses the correct idiom + correct verb + no redundant words. Hence E is the correct answer.

Is considered/regarded to be unidiomatic??? Before the

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