I. Complete the dialogues with the verbs given, as in the example.

Example: "Did the rain stop?" "Yes, it stopped about 10 minutes ago." (to stop)

1. "Did the guy at the garage fix your motorcycle?"
"Yeah, he ___ it yesterday." (to fix)

2. "What a bummer! You needed to stay home and study last night,"
"I didn't mind. I only _ for an hour." (to study)

3. "Did Debbie try your special scrambled eggs?"
"Yes, she _ them, but she didn't like them." (to try)

4. "Did Phil drop his phone?"
"Yeah, he _ it, and he doesn't want to fix it. He's going to buy a new one today." (to drop)

5. "Did you and Tammy use the bikes you borrowed from us last week?"
"Yes, we _ them on Sunday." (to use)

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II. Read the statements, and then complete the questions, as in the example.

Example: "Our games usually start at 8. But the game didn't start at 8 last Saturday."
"What time did it/the game start?"

1. "I wanted to run for an hour, but I stopped after 20 minutes."
"Why _ after 20 minutes?"

2. "We adopted a dog yesterday."
"What kind of dog _?"

3. "I mowed the lawn twice last week."
"Why _ twice in the same week?"

4. "I shopped a lot this morning."
"Where _____ this morning?"

Let's look at each part of the task sequentially. We need to complete the dialogues using the correct form of the verb provided, and then complete the questions based on the statements.

I. Complete the dialogues with the verbs given:

"Did the guy at the garage fix your motorcycle?"
"Yeah, he fixed it yesterday." (to fix)
"What a bummer! You needed to stay home and study last night."
"I didn't mind. I only studied for an hour." (to study)
"Did Debbie try your special scrambled eggs?"
"Yes, she tried them, but she didn't like them." (to try)
"Did Phil drop his phone?"
"Yeah, he dropped it, and he doesn't want to fix it. He's going to buy a new one today." (to drop)
"Did you and Tammy use the bikes you borrowed from us last week?"
"Yes, we used them on Sunday." (to use)

II. Read the statements, and then complete the questions:

"I wanted to run for an hour, but I stopped after 20 minutes."
"Why did you stop after 20 minutes?"
"We adopted a dog yesterday."
"What kind of dog did you adopt?"
"I mowed the lawn twice last week."
"Why did you mow the lawn twice in the same week?"
"I shopped a lot this morning."
"Where did you shop this morning?"

When completing dialogues or forming questions with past tense verbs, it's important to correctly form the past tense. For regular verbs, you typically add '-ed' at the end. However, for irregular verbs, you must memorize the correct past tense form. Remember to also frame questions correctly, often starting with an interrogative word when necessary and using 'did' for past tense questions.