When do we use "their" and they're in the sentence?

English Language Tests, Intermediate level

ESL/EFL Test #219 [color=blue]“Confusing Words test (2)”, question 8

lifestyle is really hectic and unhealthy.

(a) Their
(b) They’re
© There
(d) They

English Language Tests, Intermediate level

ESL/EFL Test #219 [color=blue]“Confusing Words test (2)”, answer 8

Their lifestyle is really hectic and unhealthy.

Correct answer: (a) Their

Your answer was: [color=red]incorrect
They’re lifestyle is really hectic and unhealthy.
[size=200]_________________________[/size]

when do we use “their” and they’re in the sentence?

Hi,

These are two different forms. ‘They’re’ is a shortened form of ‘They are’ and ‘their’ is a possessive adjective (like ‘my’ for example) and means belonging to them. Let’s put them both in one sentence:

They’re (they are) going for a drive in their new car.

Hope this helps.

Alan

thanks hope to learn more from you and the rest. God bless