Difference between develop and build

[Strawberry girl]

Test No. incompl/inter-35 "Planning a Business", question 10

Since the start of the business many new ideas have ......... out of the original plan.

(a) developed
(b) shown
(c) gained
(d) built

Test No. incompl/inter-35 "Planning a Business", answer 10

Since the start of the business many new ideas have developed out of the original plan.

Correct answer: (a) developed

Your answer was: incorrect
Since the start of the business many new ideas have built out of the original plan.
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Hi, Alan
Why the word develop is wrong?
I think it also has the meaning as build.

[Mister Micawber]

.
Semantically, we normally consider ideas as developed rather than built-- it is a matter of usual collocation.

Developed is also grammatically right here, Strawberry Girl, while built is wrong because develop can be used in both an active and a passive voice, but built can sensibly appear only as passive.
.
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Native English teacher at Mister Micawber's

[Alan]

Hi Strawberry,

Develop is one of those versatile verbs that can be both transitive and intransitive as in:

They have developed a successful business (transitive)

The business has developed massively since it started (intransitive)

Build on the other hand has to have an object (transitive only) and there is no object in my sentence:
"Planning a Business", answer 10

Alan
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English as a Second Language
You can read my ESL story Future