English was spoken in both countries. It still is.
English
celtic
Celtic
they speek the smae language
It was settled by Great Britain.
Probably a mixture of Celtic, Danish and Norse.
No, Welsh is the third most spoken language in Great Britain, at about 1% of the population. Only about 0.3% of the total population of the United Kingdom use BSL.
German has never been spoken in Great Britain, but English is in fact a Germanic language. With the exception of the Celts, most Northern Europeans are Germanic peoples.
The main language is English (Brittish English). It's different than American or Australian English.
The language spoken in Canada is primarily English, which is also the main language spoken in Great Britain. However, it is worth noting that Canada is a bilingual country, and French is also an official language in certain areas, particularly in the province of Quebec.
Cornish is spoken by some people in Cornwall, Great Britain. There are some schools there that teach Cornish, which is recognized as a minority language in the UK.
Australia was once a colony of Great Britain.
Not at all. Great Britain is in the northern hemisphere. Australia is in the southern hemisphere.