помогите с английским пожалуйста:
Fill in the gaps with the present perfect or past simple of the verbs in brackets.
1. The Welsh language ...( be spoken) for about twelve centuries already.
2. The Manx language...( be spoken) on the lsle of Man up to the end of the 19th century.
3. A hundred and twenty- five Native American languages ...(disappear) up to now.
4. Bruce Connell... (return) to Cameroon, but Bogon, the last speaker of Kasabe, had died.
5. Pre- Columbian people...( return) 300 languages at the time Columbus Landed in America.
6. Of the 175 or so languages recorded across the Rossian Federation, about half a dozen...(by now/ come) to the edge of extinction.
7. When... the tribe council... (decide) that it would not develop a written form of the language?
8. Linguists found that only 500 Kets, north- west Siberian peopie,... (speak) their  own language competently in 1993.

1)has been spoken2)had been spoken3) have disappeared4) returned5) had returned6) has come7) did...decide8) spoke