25/2/2016 ENGLISH PAGE Mixed Prepositions 17 englishpage.com Home > Prepositions and Phrasal Verbs > Mixed Prepositions 17 Mixed Prepositions 17 MultipleChoice f t g+ p Complete the text below by choosing the correct prepositions, then press "Check" to check your answers. Orchids are the largest and most diverse the flowering plant families, with over 800 described genera and 25,000 species. Some sources give 30,000 species, but the exact number is unknown since classification differs greatly the academic world. Revisions of different genera occur monthly basis and this will increase the growing use a genetic research and biochemistry. More than 100,000 hybrids and cultivars, produced horticulturists, have been created species the introduction of tropical the 19th century. The Kew "World Checklist of Orchids" includes about 24,000 accepted species. About 800 new species are added each year Orchids, along grasses, are considered examples advanced (derived) floral evolution through their interactions and their symbiosis the most pollinators orchid mycorrhizal fungi. Source: http://en.wikipedia.org/wiki/Orchids Check Copyright © 2016 Englishpage.com, All Rights Reserved http://www.englishpage.com/prepositions/mixed_prepositions_17.htm 1/2 25/2/2016 ENGLISH PAGE Mixed Prepositions 17 Contact us | Privacy Policy | Advertise with us Your personal online English school. Learn English at Englishpage.com! Weekly Lesson Grammar Book Vocabulary Verb Tenses Conditionals Modals Gerunds / Infinitives Articles Prepositions Minitutorials Irregular Verbs Reading Room Listening Lounge Games English Forums English Schools English · Foreign Dictionaries English ·English Dictionaries Irregular Verb Dictionary Phrasal Verb Dictionary Verb + Preposition Dictionary http://www.englishpage.com/prepositions/mixed_prepositions_17.htm 2/2