Jawaban:

1. The tense used in the text above is past tense.

2. Sentences in the form of past tense:

- "Yesterday, my family and I went to the zoo."

- "After we entered the zoo, we went straight to the penguin exhibit."

- "They were so cute and playful."

- "He cooked sausages so we could have sausages for lunch."

- "In the afternoon, we saw the sharks and the tropical fish."

- "At the end of the day, we wanted to have ice cream."

3. Adverbs of time used in the text: yesterday, in the morning, in the afternoon, at the end of the day.

4. Past tense verbs used in the text:

- went

- had

- entered

- went

- saw

- wanted

5. Sentences that have usage of past tense verbs indicating action, but a state of mind or being:

- "They were so cute and playful." (state of mind or being)

- "At the end of the day, we wanted to have ice cream." (state of mind or being)