security systems

[Suneethaago]

English Grammar Tests, Elementary Level

ESL/EFL Test #203 "Pronoun Practice (3)", question 4

People should buy security systems for ......... homes in order to prevent break-ins.

(a) their
(b) we
(c) us
(d) his

English Grammar Tests, Elementary Level

ESL/EFL Test #203 "Pronoun Practice (3)", answer 4

People should buy security systems for their homes in order to prevent break-ins.

Correct answer: (a) their

Your answer was: ?
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I marked the correct answer for this. But I got a message that I skipped one answer. This is not the first time it happened. I got such messages several times. I can't understand why?

[Beeesneees]

The test works without a problem for me. Could you accidentally be deselecting by clicking twice?
_________________
Cheers m' dears!

[Suneethaago]

I was quite sure that, it didn't happen. And also, same thing happen to me in the next test and I got the same message. However, I returned to the test and marked it again. Then it was OK.

I will double check when I do the other tests. I think It's my responsibility to do so.

Thank you for your response...!!!