The stranger said something in a _______ voice and the little girl was very much _______.
A. frightening, frightened
B. frightened, frightening
C. frightening, frightening
D. frightened, frightened
________the piano, someone suddenly knocked at the door.
A. Playing
B. When I was playing
C. Repairing
D. Examining
Mother caught the boy ______ in the corner.
A. smoke
B. to smoke
C. being smoked
D. smoking
______ the programme, they have to stay there for another 2 weeks.
A. Not completing
B. Not completed
C. Not having completed
D. Having not completed
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