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I can't make -- what's happening
a. away b. out c. do d. over
He's left his book at home, he's always so-- 
 a. forgetting b. forgotten c. forgettable d. forgetful
Driving a car which faulty brakes is -- quite a risk
a. putting b. setting c. talking d. being
A small --- of students was waiting outside the class to see the teacher
a. gang b. crowd c. team d. group