[ Infinitive and Gerund ]
Alan regrets _____ about the food.
A. complain
B. to complain
C. complaining
Select your answer:
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Present and Past Simple Passive › ViewRare animals … in many countries.
A. Are protected
B. Protected
C. Protect
D. To be protected
Grammar › View
A zebra runs ______ than a cheetah.
A. more slowly
B. slowlier
C. slower