❓ find the missing word use the verb to be:
1. Theynot in the room.
2. They student.
3. She___not fun.
4. He___smart.

1. are

2.are

3. is

4. is

Explanation:

Are you sure number 2 is written correctly? The verb to be for "they" is "are" but something seems to be missing.

when the outside temperature is too cold, an endothermic animal can generate heat by shivering. endothermic animals must eat much more often than ectothermic animals since it takes energy to maintain a constant body temperature.