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In the majority of dialects, a word ending in -n is alveolar (your basic "n" sound in English, such as "begin"). However, is some dialects, the final -n sound ... ... <看更多>

You just need to make use of a regular expression (see help("regex") ): x <- c("has", "hasn't", "was", "wasn't") sub("n't$", " not", ... ... <看更多>

Aug 11, 2013 - For early readers, lots of sounding out practice is key. Help your student stretch their phonics muscles by practicing sounding out words ... ... <看更多>