帮忙填写下英语单词it is said that Father Christmas climbs down the c_

帮忙填写下英语单词
it is said that Father Christmas climbs down the c_____on Christmas Eve
Columbus was c____to have discovered America in 1492
the old tend to raise pets to keep their c___
if the bad weather c_____,we will put off the conference
the connection of telephones and c_____gave bieth to the internet
The newly married c___decided to adopt that orphan