1B should be "The actress Tania Revesky is said TO HAVE refused a part in the film Volcano."
3B should be: "The Prime Minister and his wife are BELIEVED TO BE getting divorced." (Also, you wouldn't capitalise "the" in the Prime Minister unless it was the first word of the sentence. It's not part of the title.)
4B should be "The footballer Gary Johnson is said TO EARN $1 million a year." Also 4A should probably contain the surname.