_____ on your sweater. It's very cold outside.
A. Putting
B. Put
C. To put
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_____ 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
_____ a break. You've worked really hard all day.
A. Have
B. Having
C. Has