1. Put the verbs in brackets into the infinitive or -ing form: 1. I don't enjoy… … (go) to the discos. 2. My baby sister is just learning … (speak). 3. I couldn't help … (laugh) when I saw Tom in this costume. 4. Can't you remember … … (fill) up the car with petrol on time? I's nearly empty. 5. I'd love … … (invite) Dave and Mary round for a meal some time. 6. I regret … 7. Myjeans need)that I won't be able to come. … (wash). They're filthy. 8. Stop … … (pull) my hair! It hurts! 9. To tell the truth I'm not very keen on … (visit) museums. 10. I just want … (wish) you Happy Birthday. 11. The doctor advised me to stop … (smoke). 12. Would you mind … (feed) our cat while we're away on holiday? 13. Don't forget … … (defrost) the chicken before you cook it. 14. Did you manage … (find) what you were looking for? 15. Can you slow down a bit? I'm not used to … … (drive) so fast. 2. Choose the right form: Dear Dan, We just wanted say/to say/saying thank you for giving us a lift before we caught the plane last week. It was a lovely evening, and we were happy meeting/to meet/meet your friends, Pete and Sarah. We managed get/getting/to get to the airport with plenty of time to spare. We even tried getting/to get/get an earlier flight, but it wasn't possible. We really had a wonderful holiday in Spain. We just enjoyed driving/to drive/drive through the countryside, and we often stopped walk/walking/to walk round a mountain village. We met our friends, Bill and Sue, and they invited us having/to have/have a meal with them. They insisted on our staying/to stay/stay with them, but we couldn't, as we had already booked a hotel. The weather was fantastic. The sun didn't stop shining/to shine/shine all the time we were there. Leaving Spain was very sad. Anyway, we're looking forward to see/seeing/to see you soon. Best wishes, Sandra

**Task 1: Put the verbs in brackets into the infinitive or -ing form:** 1. I don't enjoy **going** to the discos. - **Explanation:** In this case, "go" should be in the form of the gerund "going" because it follows the verb "enjoy." 2. My baby sister is just learning **to speak**. - **Explanation:** Here, "speak" follows the verb "learning" and hence should be in the infinitive form. 3. I couldn't help **laughing** when I saw Tom in this costume. - **Explanation:** "Laughing" is the correct form as it follows "help" which is followed by a gerund. 4. Can't you remember **filling** up the car with petrol on time? It's nearly empty. - **Explanation:** The gerund "filling" is used after "remember" to indicate the action in the past. 5. I'd love **to invite** Dave and Mary round for a meal some time. - **Explanation:** The verb "invite" follows "love" and should be in the infinitive form. 6. I regret **to inform** you that I won't be able to come. - **Explanation:** The verb "regret" is followed by the infinitive "to inform" in this sentence. 7. My jeans need **washing**. They're filthy. - **Explanation:** The verb "need" is followed by the gerund "washing" in this context. 8. Stop **pulling** my hair! It hurts! - **Explanation:** The verb "stop" is followed by the gerund "pulling" in this imperative sentence. 9. To tell the truth, I'm not very keen on **visiting** museums. - **Explanation:** The gerund "visiting" follows "keen on" in this sentence. 10. I just want **to wish** you Happy Birthday. - **Explanation:** The infinitive "to wish" follows "want" in this sentence. 11. The doctor advised me to stop **smoking**. - **Explanation:** The verb "stop" is followed by the gerund "smoking" in this case. 12. Would you mind **feeding** our cat while we're away on holiday? - **Explanation:** The verb "mind" is followed by the gerund "feeding" in this question. 13. Don't forget **to defrost** the chicken before you cook it. - **Explanation:** The verb "forget" is followed by the infinitive "to defrost" in this instruction. 14. Did you manage **to find** what you were looking for? - **Explanation:** The infinitive "to find" is used after "manage" in this question. 15. Can you slow down a bit? I'm not used to **driving** so fast. - **Explanation:** The gerund "driving" follows "used to" in this sentence. **Task 2: Choose the right form:** - Dear Dan, We just wanted **to say** thank you for giving us a lift before we caught the plane last week. It was a lovely evening, and we were happy **to meet** your friends, Pete and Sarah. We managed **to get** to the airport with plenty of time to spare. We even tried **to get** an earlier flight, but it wasn't possible. We really had a wonderful holiday in Spain. We just enjoyed **driving** through the countryside, and we often stopped **to walk** round a mountain village. We met our friends, Bill and Sue, and they invited us **to have** a meal with them. They insisted on our **staying** with them, but we couldn't, as we had already booked a hotel. The weather was fantastic. The sun didn't stop **shining** all the time we were there. Leaving Spain was very sad. Anyway, we're looking forward **to seeing** you soon. Best wishes, Sandra - **Explanation:** In each case, the correct option is chosen based on the context and structure of the sentence.