Complete the sentences. use the derivatives of the words on the right .
1) people know little about his ( cruel) .
2) the actors were very (friend) and smiling . We liked them a lot.
3) it was (possible) to finish the job in five days .
4) Alexander Ostrovsky is well-known Russian ( drama) .
5) " Wolves and Sheep " is a(fame) play by A. Osrtovsky . 6) the Bolshoi Theatre in the center of Moscow is ( international) important .7) all ( Europe ) countries sent their (act)s to take part in the Festival. 8) John has always been very(help). He can't do a thing by himself