聽材料，回答三個小題。
（1）When will the visitors come？
A.On March 21st.
B.On April 12th.
C.On April 22nd.
（2）What will the visitors do on the second day？
A.Have a party.
B.Give a talk.
C.Visit the factories.
（3）Which of the following is TRUE？
A.There will be 16 visitors.
B.The visit will last for 7 days.
C.Mr.Goodman will show them around Deyang.