________the piano, someone suddenly knocked at the door.
A. Playing
B. When I was playing
C. Repairing
D. Examining
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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
The bell _______ the end of the period rang, ______ our heated discussion.
A. indicating; interrupting
B. indicated; interrupting
C. indicating; interrupted
D. indicated; interrupted
“Can’t you read?” Mary said _______ to the notice.
A. angrily pointing
B. and point angrily
C. angrily point
D. and angrily pointing
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