cheaper
Cheaper is a comparative adjective. To find out more, follow the link.
more information: comparative adjectives
heard
Here heard is the past tense of the irregular verb hear. Follow the link to listen to some examples.
more information: hear
Australia (sic)
When you see (sic) it means that something has been copied exactly even though it is a mistake. Liz should have said Australian in the same way that she later correctly says Asian.
choose (sic)
Here Liz should have used the irregular past tense form chose. Follow the link to hear how it's pronounced.
more information: choose
told
Here told is the past tense of the irregular verb tell. Follow the link to listen to some examples.
more information: tell
felt
Here felt is the past participle of the irregular verb feel. Follow the link to find out more and to listen to examples.
more information: feel
made
Here made is the past participle of the irregular verb make. Follow the link to find out more and to listen to examples.
more information: make