Grammar Quiz

[ Present Perfect Continuous ]

The machines _____ working today.

A. don’t

B. aren’t

C. isn’t

D. not

Select your answer:
A  B  C  D  E 


Random Topics:

Too or EnoughPresent or Past TensesAdverbs of TimePhrases & ClausesSuffixes and TensesComparativeFOR & SINCESingular and Plural NounsGrammar - Present Perfect TensePast and Perfect Tenses

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