Question

on the first day of summer break, he planned to _____ in the freedom of having no homework or deadlines.

the prank wasnt spontaneous—it was carefully _____ by a group of students who had been planning it for weeks.

the lake was so _____ at dawn that it reflected the mountains like a perfect mirror.

choose
congealed
luxuriate
placid
premeditated
bewildered

Explanation:

1. For the first sentence: The context is enjoying summer freedom without homework; "luxuriate" means to take great pleasure in something, which fits.
2. For the second sentence: The prank was not spontaneous and was planned for weeks; "premeditated" means planned in advance, matching the description.
3. For the third sentence: The lake reflected mountains like a mirror, meaning it was calm and still; "placid" describes a calm, peaceful body of water, which fits this context.

Answer:

1. On the first day of summer break, he planned to luxuriate in the freedom of having no homework or deadlines.
2. The prank wasn't spontaneous—it was carefully premeditated by a group of students who had been planning it for weeks.
3. The lake was so placid at dawn that it reflected the mountains like a perfect mirror.