Respuesta :

Tip: Non-defining clauses usually require commas and start with "who" or "which"

c. Nelson Mandela , who was the first black president of South Africa , won the Nobel Peace Prize in 1993

d. Present participle is adding '-ing" to a word : like playing, helping, finding

Here is how to combine the sentences using a present participle.

Hoping to find a place before dark, they continue their journey

e. Felix was born in Austria on the 20th, April 1969 and became the highest and fastest skydiver ever