I left out the following questions. Can you please check them, too?

1) My father works as a lorry driver and I helped him unloading goods from his lorry.
2) I spent the first part of my holiday studying for my make-up exams in Physics and Maths. Then I trained with my team for the mid season's bike race, which took place in Livigno on 3 August.
3) In July I flew to London with my family. I didn't do any summer course but I had the opportunity to brush up my English and make new friends.
4) In August I did a summer job as a carpenter. I'm going to put the money I earned onto my bank account and use it to pay my flight to Paris (or to spend it on my next flight to Paris?).
5) At the beginning of your course book there is a table of contents containing a list of the topics we will be dealing with this year.
6) I advise you to get a ring binder and use the front to write your grammar exercises and its back to write the new words arranged in alphabetical order.

1. comma needed

2. mid-season bike race...

4. I didn't take any summer courses, but ...

5. comma needed

6. change "to write" to for writing End the sentence after "exercises", omit "and", and start a new sentence: Use the back...

Sure, I can check those questions for you. Here are my explanations for each question:

1) My father works as a lorry driver and I helped him unloading goods from his lorry.
To check this statement, you can ask yourself if it is logical for someone to help their father unload goods from a lorry. Based on common experiences and knowledge, it is reasonable to assume that someone could help their father in this way. Therefore, the statement seems plausible and can be considered true.

2) I spent the first part of my holiday studying for my make-up exams in Physics and Maths. Then I trained with my team for the mid-season's bike race, which took place in Livigno on 3 August.
To verify this statement, you can break it down into two parts: studying for make-up exams and training for a bike race. You can ask yourself if it is possible for someone to spend their holiday in this way. Studying for exams is a common activity during holidays to catch up on missed work. Additionally, training with a team for a race is also a plausible holiday activity for individuals involved in sports. Therefore, the statement appears to be true.

3) In July I flew to London with my family. I didn't do any summer course but I had the opportunity to brush up my English and make new friends.
To validate this statement, you can evaluate the possibility of someone flying to London with their family during the month of July. It is plausible for individuals to travel during their summer vacation, especially to popular destinations like London. Additionally, taking the opportunity to improve one's language skills and make new friends is a common motivation for traveling. Hence, the statement seems credible.

4) In August, I did a summer job as a carpenter. I'm going to put the money I earned onto my bank account and use it to pay my flight to Paris (or to spend it on my next flight to Paris?).
To analyze this statement, you can consider the feasibility of someone working as a carpenter during the summer. It is common for individuals to take up summer jobs to earn money. Additionally, using the money earned to pay for a flight or other expenses is a practical decision. Therefore, the statement appears to be true.

5) At the beginning of your course book, there is a table of contents containing a list of the topics we will be dealing with this year.
To confirm this statement, you can refer to the course book in question and check if it includes a table of contents with a list of topics. Typically, course books provide an overview of the topics that will be covered throughout the year. Therefore, by examining the content of the book, you can determine the accuracy of the statement.

6) I advise you to get a ring binder and use the front to write your grammar exercises, and its back to write the new words arranged in alphabetical order.
For this statement, you can evaluate the advice given and assess its practicality. Using a ring binder to organize different types of exercises is a common recommendation to keep materials organized. Similarly, arranging new words in alphabetical order can facilitate easier access and retrieval. Therefore, the advice provided appears to be sound.

Please note that for some statements, certain details may require further verification or context, such as specific dates or locations.