单选题 To confirm the reservation, please visit our office during business hours with a deposit of 75% of the total tour fare per person.

单选题 Various studies and surveys have shown that the heavy usage of smart phones and social media negatively affects children’s mental and physical health.

单选题 By asking appropriate questions, you are showing the employer that you’re interested in being part of their company.

单选题 Due to increased costs for materials used in our manufacturing process, we have to increase the wholesale price of our products.

单选题 Please write to us or just see the customer service manager if you are not satisfied with anyaspect of their company.

单选题 The agreement will come into force on the date when it is approved by the board of the company and it will continue for five years.

单选题 We have a special surprise for you — a seven-day online promotion of all the electronic products we manufactured last year.

单选题 When returning products to us, you must take care to see that they are received by us and not damaged in transit.