It was........................ of him to leave the windows open.

a. I am writing to apply for a volunteer position at the head office. I heard the announcement about this position on radio last Sunday.

b. I am available for an interview on any weekday from 8.00 am to 11.00 am. If my application is successful, I can start on 15th January 2022.

c. I am interested in the job duties at the head office. I want to help you welcome guests and visitors to the office and receive and sort donations.

d. Yours faithfully,

e. I look forward to hearing from you.

f. Dear Sir or Madam,

a. Firstly, we should clean up all areas regularly. For example, we can organise clean-up activities at weekends.

b. There are three things we can do to improve the environment in our school.

c. Secondly, we ought to set up more rubbish bins. For instance, we can put more rubbish bins in the school gate, in front of each building, or in the playground.

d. In conclusion, we can improve the environment in our school in many ways and even small actions can make a big difference.

e. Finally, we should plant more trees. To give an example, we can encourage students to plant trees or flowers in our school because this reduces CO2 and makes the air clean.

Which of the following can be the best title for the passage?