（1）Where did Lily do the volunteer activity？
A.In a hospital.
B.In a park.
C.At school.
（2）Which group was Lily in？
A.Group 1.
B.Group 2.
C.Group 3.
（3）How did they go to the volunteer place？
A.By bike.
B.By bus.
C.On foot.
（4）What did the students in Lily's group do？
A.They watered the flowers.
B.They picked up the rubbish.
C.They watered the trees.
（5）How long did they do the volunteer work？
A.For three hours.
B.For two hours.
C.For one hour.