3. fill in the gaps with the present perfect or present perfect continuous forms ofthe verbs in brackets.

1. colin (draw) hundreds of pictures.

2. nick (go) to france for about a year.

3. tracy (take) part in concerts many times.

4. stephan (make) three music videos recently.

5. alice (take) part in concerts since she was six.

6. i think he (make) a lot of improvement.

7. she (worry) about this for two months.

8. she (study) the driver's manual for hours every day.

9. i (to have) a headache since i got up.

10. it's a long time since i (to see) your brother paul.​

1. Colin has drawn hundreds of pictures.

Explanation: We use the present perfect tense to talk about an action that started in the past and is still continuing or has just finished. In this case, Colin has drawn hundreds of pictures in his life, and he may continue drawing more.

2. Nick has been going to France for about a year.

Explanation: We use the present perfect continuous tense to talk about an action that started in the past and is still ongoing. In this case, Nick has been going to France consistently for about a year, and he may continue going in the future.

3. Tracy has taken part in concerts many times.

Explanation: We use the present perfect tense to talk about past experiences or actions that have a connection to the present. In this case, Tracy has taken part in concerts on multiple occasions in the past, and she may continue doing so in the future.

4. Stephan has made three music videos recently.

Explanation: We use the present perfect tense to talk about an action that happened at an unspecified time before now. In this case, Stephan has made three music videos at some point in the recent past, and he may make more in the future.

5. Alice has been taking part in concerts since she was six.

Explanation: We use the present perfect continuous tense to talk about an action that started in the past and is still ongoing. In this case, Alice has been taking part in concerts since she was six years old, and she may continue participating in the future.

6. I think he has made a lot of improvement.

Explanation: We use the present perfect tense to talk about an action that started in the past and is still continuing or has just finished. In this case, the speaker believes that he has made a lot of improvement in the past, possibly referring to someone's progress in a particular skill or area.

7. She has been worrying about this for two months.

Explanation: We use the present perfect continuous tense to talk about an action that started in the past and is still ongoing. In this case, she has been worrying about something continuously for the past two months, and she may continue to worry in the future.

8. She has been studying the driver's manual for hours every day.

Explanation: We use the present perfect continuous tense to talk about an action that started in the past and is still ongoing. In this case, she has been studying the driver's manual intensively for hours every day, and she may continue studying in the future.

9. I have had a headache since I got up.

Explanation: We use the present perfect tense to talk about an action that started in the past and is still continuing. In this case, the speaker has had a headache since the moment they woke up, and they may still have the headache at the present moment.

10. It's a long time since I have seen your brother Paul.

Explanation: We use the present perfect tense to talk about an action that happened at an unspecified time before now. In this case, it has been a long time since the speaker last saw their brother Paul, and they may not have seen him recently or in a considerable period of time.