A：Hi，Mary.This is Tom speaking.
B：Hi，Tom.（1）

D

D

A：Mary，I'm calling to ask if you want to go shopping next Saturday.
B：Sorry，Tom.I'm going to help at the park clean-up event as a volunteer that day.
A：Wow?。?）

A

A

B：Yes，I volunteer at the old people's home too when I have time.
A：Cool!（3）

C

C

B：Yeah，more than 60 volunteers.We'll pick up the rubbish.There will be a talk about it，too.
A：（4）

B

B

Can I help，too？
B：Sure!We need help with posters for the event.You can also guide people coming for the talk.
A：Sounds good!I can do that.（5）

C

C

B：There will be buses taking us there from our school.
A：OK.See you then.
B：See you!
（1）A.Nice to hear from you.
B.Thank you for telling me.
C.Glad to meet you here.
D.Glad to receive your call.
（2）A.Do you volunteer a lot？
B.Did you clean up the park？
C.Are you busy all the time？
D.Were you good with the kids？
（3）A.Is there something different in the event？
B.Is there a lot of work for us to do？
C.Are there many volunteers for the event？
D.Are there rules we must follow？
（4）A.Nothing much.
B.That's great.
C.No problem.
D.It depends.
（5）A.Where is the nearest bus stop？
B.Which bus should we take？
C.How will we go to the park？
D.When shall we get ready for it？