_____ watching TV! You should be studying.
A. Stopping
B. Stop
C. Stopped
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_____ on your sweater. It's very cold outside.
A. Putting
B. Put
C. To put
_____ to your teacher. He'll be able to advise you.
A. Spoke
B. Speaks
C. Speak
_____ my car. Here are the keys.
A. Use
B. Using
C. To use
_____ anyone. It's a secret.
A. Not tell
B. Not telling
C. Don't tell