The user wants to know which verbs from the list are regular and which are irregular in their past tense form.

Task Analysis:

The task is to identify regular and irregular verbs from a provided list and then use them to complete sentences in the Past Simple or Past Continuous tense. The image displays a grammar exercise focusing on the Past Simple tense, specifically irregular verbs.

Part 4 a) - Regular and Irregular Verbs:

We need to find the past tense forms of the verbs given and classify them. Since the text itself is not provided, we will list the common past tense forms of the given verbs and then classify them.

Verbs to analyze:

• 1. be
• 2. decide
• 3. have
• 4. get
• 5. knock
• 6. answer
• 7. open
• 8. hear
• 9. jump
• 10. turn
• 11. see
• 12. rush
• 13. introduce
• 14. shout
• 15. walk
• 16. give
• 17. die
• 18. say

Classification:

• Regular Verbs (add -ed or -d):
• 2. decide -> decided
• 6. answer -> answered
• 7. open -> opened
• 9. jump -> jumped
• 10. turn -> turned
• 12. rush -> rushed
• 13. introduce -> introduced
• 14. shout -> shouted
• 15. walk -> walked
• 17. die -> died
• Irregular Verbs (change form unpredictably):
• 1. be -> was/were
• 3. have -> had
• 4. get -> got
• 5. knock -> knocked
• 8. hear -> heard
• 11. see -> saw
• 16. give -> gave
• 18. say -> said

Part 4 b) - Completing Sentences:

The image shows the beginning of a sentence: "I was having tea when somebody knocked at". We need to use the verbs from the list to complete sentences in the Past Simple or Past Continuous. The example sentence uses 'knocked', which is the past tense of 'knock' (a regular verb).

Let's complete the sentence provided in the image:

I was having tea when somebody knocked at.

(Note: The rest of the sentence is cut off in the image.)

To fully address part b), we would need more sentences. However, based on the instructions, we would select appropriate verbs from the list and place them in their correct Past Simple or Past Continuous form to fit the context of the sentences.

Example completions using other verbs (assuming hypothetical sentences):

• Using 'be': She was late for the meeting.
• Using 'have': They had a great time at the party.
• Using 'get': He got a new bicycle for his birthday.
• Using 'see': We saw a fascinating documentary last night.
• Using 'give': My friend gave me a thoughtful gift.
• Using 'decide': We decided to go to the cinema.
• Using 'hear': I heard a strange noise from outside.

Answer Summary:

• Regular Verbs: decided, answered, opened, jumped, turned, rushed, introduced, shouted, walked, died.
• Irregular Verbs: be, have, get, knock, hear, see, give, say.
• The sentence provided in the image uses the regular verb 'knocked' (past simple of knock).