Answer:
One of the more dangerous sports is skiing down almost-vertical slopes.
Mr. Karl doesn't approve of coming late.
Thank you for listening to my explanation.
To get rid of the skunk odor, try washing the dog in tomato juice.
Hearing the wind moan scared the children.
Explanation:
A good rule of thumb is to imagine adding "to" in front of the word (in the present tense) and seeing if it still makes sense. "to ski," "to listen," "to wash," that sort of them. You can also look the word up online or in a dictionary and it'll tell you.
