题目内容：

    Juili Kale was looking forward to receiving her master's degree at Arizona State University. She planned to invite her family living in India to the United States for her graduation ceremony. But then, in March, the coronavirus pandemic ended those plans as schools nationwide closed to stop the spread. Kale's dream of spending time with family members on her big day came crashing down. Yet the graduation ceremony is taking place—just not as she expected.

University officials have turned to robots so Arizona State graduates and their families can take part in the event online. Cameras recorded images of Kale and about 140 other graduates online this month. They were wearing robes and mortar board caps. They took turns moving a robot at the university that held an eye-level display showing their face. With the help of the robot, they stepped forward to receive their diplomas and take pictures. The robots are from Double Robotics, a company based in Burlingame, California. Before the health crisis, they had been used to help people attend funerals and even marriage ceremonies without traveling.

Sanjeev Khagram is dean of Arizona State's Thunderbird School of Global Management. He said that the video- a ''bittersweet'' experience—was recorded and produced over two days. It may not have been ideal for the students. Khagram admitted. '' But, we want to show that we did everything that we could to celebrate them. When the crisis is over, the class of 2020 can do a real-life walk at any future graduation ceremony they choose. ''

Kale planned to throw a ''watch party'' with her husband at home and her family in India.

Getting used to the online experience was easy for Nancy Sierras Morales. ''We have been able to adapt very quickly because we are used to being on a computer and on the phone almost like 24/7, '' the 22-year-old said. She said that, while it is not the best, it is ''cool...to be like the first class ever to do this''.

''I'm disappointed.'' said 41-year-old Douglas Northcott. He is graduating with a master's degree in applied leadership and management. He called the online event with robots ''creative''. But he looked forward to the real thing. ''And if anything, that makes it better , in that it is spread over two times rather than one. ''

1.What had the robots mainly been used for before the graduation ceremony?

A.Saving travelling for people to attend ceremonies like weddings.

B.Hosting all kinds of ceremonies for people unable to travel.

C.Helping professors with their teaching plans in universities.

D.Amusing people during their travelling to funerals.

2.According to the text, ________ made a fast adjustment to the new situation.

A.Juili Kale B.Sanjeev Khagram

C.Nancy Sierras Morales D.Douglas Northcott

3.According to Sanjeev Khagram, to have a real graduation ceremony, the 2020 graduates can ________.

A.throw an online ''watch party''

B.attend any future graduation ceremony

C.hold another real one by themselves

D.do everything they can to celebrate

4.What is the best title for the text?

A.A disappointing graduation ceremony

B.A graduation ceremony with the help of robots

C.A multifunctional robot from Double Robotics

D.A special experience of students in the health crisis