Choose the correct answer.

What are National Nature Reserves? Like other countries, the National Nature Reserves (NNR) are the best wildlife places in Scotland, so everyone [can/should/must] enjoy and be proud of Scotland’s wonderful nature. Most reserves have [habits/places/habitats] and species that are nationally or internationally important. People also [can to enjoy/must to enjoy/enjoy] these special places too, without harming or disturbing the wildlife that lives there. NNRs show the [narrow/wide/high] variety of Scotland’s species from [penguins/pigeons/puffins] to marshes, from seabirds colonies to mountain plants.