This is one of MARVEL UK's late Seventies FANTASTIC FOUR ANNUALS. I'm not sure of the exact date of publication because there's no details on the cover or inside so I've, somewhat arbitrarily, said 1979. Someone set me right.
The reprints were 'Here There Be Witches' from US FF 185 and 'Enter Salem's Seven' from the following issue. Both parts had originally seen print in the States in 1977.
There were also an original text story (the title of which I forgot to note) and some activity/ feature pages.