Possible vs. unreasonable

[Fredo Huang]

English Grammar Tests, Elementary Level

ESL/EFL Test #87 "Common English Errors (3)", question 5

I know it sounds unreasonable but it ......... that she will never come back.

(a) is possible
(b) could be possible
(c) could be possibly
(d) is possibly

English Grammar Tests, Elementary Level

ESL/EFL Test #87 "Common English Errors (3)", answer 5

I know it sounds unreasonable but it is possible that she will never come back.

Correct answer: (a) is possible

Your answer was: incorrect
I know it sounds unreasonable but it could be possible that she will never come back.
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Why "it could be possible" is wrong ?

Fredo Huang

[Alan]

Hi,

In this sentence:

[Olgavic]

Hello! Why "possibly" is wrong here?

[Alan]

Hi,

In that sentence you could either say: 'It is possible' or 'Possibly' but you wouldn't use 'possibly' with 'it is'.

Alan
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English as a Foreign Language
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[Olgavic]

Thank you