A big thank you for your the best help but unfortunatly I am too confused about this sentence that is writen in the dictionary of cambridge or somewhere..
sentence:A large number of invitations HAS been sent.
but on the other hand I have seen this:A small number of children ARE educated at home.
Of course I really know that after (a large number of...) normally we must use a plural verb but in that sentence in the cambridge dictionary It is used HAS !!!!!why they do not used HAVE??????
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