[ Past Simple Vs. Present Perfect ]
I ___________ this already. Stop asking!
A. Did
B. Have done
C. Has done
Select your answer:
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Grammar › ViewDo they want ____________ to different countries?
A. travel
B. to travel
C. traveling
Grammar › View
Ron and Michael ___ at the table and doing their homework.
A. is sitting
B. are siting
C. are sitting