[ Grammar ]
The dog barks at the squirrel.
A. past
B. present
C. future

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Simple Past TensePast and Present TensesIN, ON & ATParts of Speech and Compound SentencesGerunds as objects of prepositionused to vs be used to vs get used toModals for Necessity and SuggestionsTenses of VerbsIF CLAUSEVocabulary & GrammarOther quiz:
Grammar › ViewThe dog _ (bark) loudly at strangers.
A. bark
B. barks
C. barking
D. barked
Grammar › View
It’s worth …………
A. To do
B. Doing