Evidence of a powerful volcano, which erupted under the ice sheet of West Antarctica around 325BC and might still be active now, __________ so far by British scientists.

While many people are excited about these new technologies, these same technologies frighten others. Nowhere __________ truer than with genetically modified (GM) food.

._____ in an atmosphere of simply living was what her parents wished for.

his father has been away for more than one year, John can still keep doing what he needs to.

28 Although this movie is based on past events, it is not _________ accurate