Can you tell the differences ______‘farther’ ‘further’

Now computers _________ all over the world .

The young couple, who returned my lost wallet, left___________I could ask for their manes.

Mum, it is nice weather. I want to skate this afternoon. —Don’t you think the ice on the lake is too thin to ________ your weight.

hey built this office block, they gave no_________ to the disabled.