（1）What's the date today？
A．April 2 nd．
B．April 22 nd．
C．May 22 nd．
（2）What did they go to the park to do？
A．Do some cleaning．
B．Enjoying themselves．
C．Planting trees．
（3）What did they do near the lake and in the woods？
A．They played games．
B．They put up some notices．
C．They collected rubbish．
（4）What did they tell the visitors？
A．The danger of pollution．
B．The importance of planting trees．
C．The importance of protecting the environment．
（5）How did they feel after they went home？
A．Tired and hungry．
B．Tired but happy．
C．Sad and angry．