Grammar books used to be (and sometimes still are) full of exercises with instruction such as ‘fill in the gaps’. Usually, such exercises consisted of lists of isolated sentences and the gaps were things like missing verb forms or missing articles.
CITATION STYLE
Jones, R. H., & Lock, G. (2011). Gap Filling. In Functional Grammar in the ESL Classroom (pp. 43–58). Palgrave Macmillan UK. https://doi.org/10.1057/9780230297524_4
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