- TH1: số đó có mặt số 0

Chọn 3 chữ số còn lại (có chứa 0): có \(C_4^2\) cách

Hoán vị các chữ số: \(6!-5!\) cách

\(\Rightarrow C_4^2\left(6!-5!\right)\) số

TH2: số đó ko có mặt số 0

Chọn 3 chữ số còn lại: \(C_4^3\) cách

Hoán vị các chữ số: \(6!\) cách

Tổng cộng: \(C_4^2\left(6!-5!\right)+C_4^3.6!\) số

The correct answer is B

"What an interesting movie!"

In this sentence, "an" is used before the adjective "interesting" because "interesting" begins with a vowel sound. This construction is used to express strong emphasis or surprise about the quality of the movie.

Tham khảo:

Task 1:
[Your Name]
[Your Address]
[City, Zip Code]
[Email Address]
[Phone Number]
[Date]

[Classmate's Name]
[Classmate's Address]
[City, Zip Code]

Dear [Classmate's Name],

I hope this letter finds you well. I am writing to address a matter of importance regarding the textbook I borrowed from you last term.

First and foremost, I would like to extend my sincerest apologies for the oversight on my part. It was irresponsible of me to overlook returning the textbook to you before your departure overseas. I realize now the inconvenience and frustration this may have caused you, and for that, I am truly sorry.

I am aware that the textbook holds significant importance to your studies, and I would like to inquire about its significance to you. Understanding its value to your academic pursuits will help me assess the urgency of its return and any potential inconvenience caused by its absence.

Rest assured, I am committed to resolving this matter promptly. I will explore all possible options to ensure the safe return of the textbook to you. Whether it be arranging for its shipment or finding a trusted individual to deliver it to you personally, I will take the necessary steps to rectify my mistake and return the textbook to its rightful owner.

Once again, I apologize for any inconvenience caused, and I appreciate your understanding and patience in this matter. Please feel free to contact me at [phone number] or [email address] to discuss further details or to provide any additional instructions for the return of the textbook.

Thank you for your understanding.

Sincerely,
[Your Name]

Task 2:
[Your Name]
[Your Address]
[City, Zip Code]
[Email Address]
[Phone Number]
[Date]

[Friend's Name]
[Friend's Address]
[City, Zip Code]

Dear [Friend's Name],

I hope this letter finds you in good health and spirits. I wanted to take a moment to express my gratitude for your warm hospitality during my recent stay with you. It was truly a delightful experience to reconnect with you after such a long time apart.

I thoroughly enjoyed our time together and cherished the opportunity to catch up on old memories and create new ones. The conversations we shared and the moments we spent reminiscing about the past brought me immense joy and comfort.

One particular highlight of my visit was [mention enjoyable activity or experience]. It was a wonderful opportunity to [briefly describe the enjoyable activity] and create lasting memories together.

As I reflect on our time spent together, I am reminded of the special bond we share and the importance of nurturing our friendship. With that in mind, I would like to extend an invitation for you to visit me at my home.

I would be delighted to host you and reciprocate the hospitality you showed me during my stay with you. It would be wonderful to spend more time together and create new memories in the comfort of my home.

Please let me know if and when you are available to visit, and I will make the necessary arrangements to ensure your comfort and enjoyment during your stay. I look forward to welcoming you into my home and creating more cherished memories together.

Thank you once again for your kindness and hospitality. I eagerly await the opportunity to host you and reciprocate the warmth and generosity you showed me during my stay with you.

Warmest regards,

[Your Name]

Task 3:
[Your Name]
[Your Address]
[City, Zip Code]
[Email Address]
[Phone Number]
[Date]

Manager
[Hotel Name]
[Address]
[City, Zip Code]

Dear Manager,

I am writing to inquire about the part-time work opportunity advertised for three months over the summer at your hotel. Having seen the advertisement, I am keen to learn more about the available position and to express my interest in joining your team.

I have previous experience working in the hospitality industry, having served as a front desk assistant at [previous hotel name] for the past year. In this role, I gained valuable experience in providing excellent customer service, handling inquiries and reservations, and ensuring guest satisfaction. Additionally, I am proficient in using hotel management software and am comfortable working in a fast-paced environment.

I am particularly interested in learning more about the specific responsibilities and duties involved in the advertised position, as well as the conditions and requirements for employment. Could you please provide more information regarding the nature of the work, including the tasks involved and any specific qualifications or skills required?

Furthermore, I would appreciate any information regarding the working conditions, such as the hours of work, remuneration, and any additional benefits or perks available to employees.

Thank you for considering my inquiry. I am eager to learn more about the available position and am excited about the possibility of contributing to the success of your hotel over the summer months.

Sincerely,
[Your Name]

The correct answer is C. "the".

"This is the book I borrowed."

In this sentence, "the" is used to refer to a specific book, indicating that it is the one being discussed or referred to in the context.