1 john whose mother ís in hospital ,is absent from school
2 arlena black whom guy invited onto his chat show , never turned up
3 we have a neighbor whose dog barks a lot
4 tom failed his exam which maks him boring
5 tom didn't want go to the surpermaket because of his backache
6 because it rains heavily ,the place is flooded
20 i couldn't go to the park yesterday afternoon because of the heavy rain