题目内容：

    An Invitation Letter

It is our honor (荣幸) to invite you and a guest to our volunteer appreciation dinner. We thank you for your time and effort (努力) spent in helping people in the fight against COVID-19. Your contributions (贡献) have made the society warmer and our group stronger. We hope more volunteers like you will join our group.

Date: Saturday, June 27, 2020

Time: 7:30 — 9:30 p.m.

Location: Volunteer Center, Wuyi Road

Please let us know by June 20, 2020 if you would like to attend.

Changsha Volunteer Group

1.If you want to attend the dinner, you should decide before _______.

A.June 27 B.June 20 C.June 18

2.How long will the dinner last?

A.1.5 hours. B.2 hours. C.2.5 hours.

3.Which of the following is right?

A.Volunteers are invited to the dinner alone.

B.Volunteers spent no effort in helping others in the fight against COVID-19.

C.More volunteers are welcome to the group.