4．听第四段独白，回答第10-12小题．
10．What did Mike's family decide to do last Friday？
A．To go boating in the nearby river．
B．To go surfing in the sea．
C．To have a picnic in a park．
11．Where did they have lunch in the end？
A．At home
B．In the park
C．In a restaurant．
12．Why was Mike feeling unhappy when they were having lunch？
A．Because his parents got angry with him．
B．Because he threw away their lunch by mistake．
C．Because he didn't like the food in the restaurant at all．
