Explanation:
Explanation is in the attachment
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Could you please add a picture of the scene :)
Answer:
He almost drowned when he tried to get the hatchet back

are<u> </u><u>singing</u><u> </u>

Since, in the sentence we can see that the action is continuing. Hence its present continuous tense.
The above sentence is about present continuous. Here two actions are happening. One is "listening" and the other is "are singing".

The answer is D: The band trip is almost full, so if the color guard members want to go, they will need to sign up soon.
Their is no man in the bake sale sentence. Hence, him. Same for the other sentences.