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[ Modal Verbs ]
My grandmother didn’t know how to use computers when she was young because they didn’t exist.
My grandmother ____________ use computers when she was younger because they didn’t exist.
A. Could
B. Couldn’t
C. Can
D. Can’t
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VerbIdioms Past Simple Vs. Present Perfect Articles & QuantifiersSimple and Continuous Present TensePast Perfect or Past Perfect ContinuousQuantifiersSentences and Non SentencesPronoun
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Pig is the ____ of all animals
A. dirtier
B. most dirty
C. dirtiest
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