Difference between aware and unaware

[Priscila Portela]

Test No. errors/advan-2 "Please, remind me", question 7

Those employees which were working on the upper floors of the building were unaware of the fire.

(a) which
(b) on
(c) were
(d) of

Test No. errors/advan-2 "Please, remind me", answer 7

Those employees who were working on the upper floors of the building were unaware of the fire.

Correct entry: who
The error was: (a) which

You have not found the error.
Those employees which were working on the upper floors of the building were unaware about the fire.
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Could I say "were unaware about the fire"?

Priscila Portela

[Alan]

Hi Priscila,

The usual preposition after aware and unaware is of. The preposition about is of a much more general nature as in knowing about something.
Alan
_________________
English as a Second Language
You can read my ESL story Cool Expressions

[Martinn]

Dear Teachers,
For Q7, I don't understand why you used which for the employees instead of who?
Many thanks
Martinn

[Lost_Soul]

Dear Guest
As you can see, it was the mistake which testtakers are supposed to correct
_________________
Alex

How much upchuck would a woodchuck upchuck if a woodchuck could upchuck ?

(a guy from Russia)