Friendly- informal,kind - gentle,pleasant-beautiful,generous-bighearted,optimist-cheerful,easy-going-leisurely,sensitive-delicate,honest-truthful,good-nice,fun-not serious,broad-minded-tolerant.
1.are called
2. connected
3. has existed
4. have been used
5.earliest
1. Much
2. A lot of
3. Much
4. Many
5. A lot of
6. A lot of