Passive construction

[alen]

Test No. errors/elem-3 "She works hard", question 9

When she was asked for her opinion on the course, she said it had been a waist of time.

(a) was asked
(b) opinion
(c) waist

Test No. errors/elem-3 "She works hard", answer 9

When she was asked for her opinion on the course, she said it had been a waste of time.

Correct entry: waste
The error was: (c) waist

You have not found the error.
When she was asking for her opinion on the course, she said it had been a waist of time.
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why are we not use was asking in this sentence?

[Alan]

Hi Alen

The sentence uses the passive - she was asked - and that's not an error and so there is no need to change it.

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