Grammar Quiz
Topics: Present Perfect Continuous

The machines _____ working today.

A. don’t

B. aren’t

C. isn’t

D. not

Select your answer:
     

Preview next quiz:

I _____________ Jennifer, but she __________ at home!

A. ‘M CALLING / ISN’T

B. ‘S CALLING / DOESN’T

C. ‘M CALLING / DOES IS

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