My name is Ryan and last summer my family and I went to an island for our summer vacation.There were so many fun and interesting things to do on the island，but my favorite was fishing.Every day，my mom，my dad，my younger brother Derek and I went to the beach.We took our little fishing boat with us.Mom didn't like fishing，so she stayed on the beach and read a book.

    One morning，while we were fishing，we heard a loud noise. "What was that？" I asked. "Oh，don't worry，Ryan.It might be a turtle（海龟）swimming under the boat， "said Dad，Derek and I looked around the boat，but we couldn't see anything.Then we heard a different noise，which sounded like an animal. "Look，Dad，there it is!" shouted Derek.It was a sea turtle and it couldn't swim well. "Let's go closer and see what's wrong with it， "Dad said.

     When we got closer，we saw that there was a piece of plastic（塑料）around the turtle's legs. "Let's help it， "I said.So Dad jumped into the water，swam to the turtle and brought it back to the boat. "There you go，little turtle；now you can swim to your family， "Dad said as he cut the plastic off.Then Derek and I put it back in the water. "I know!We should make a sign about not throwing rubbish into the sea，and put it in the sand on the beach， "I said. "I'll help，too， "said Derek. "Great idea，boys.If we don't all do something to stop sea pollution，these sea animals will die. "

（1）What did Ryan like doing best？ 　 　

A.Boating.

B.Fishing.

C.Swimming.

D.Reading.

（2）Who cut the plastic off the turtle？ 　 　

A.Ryan.

B.Derek.

C.Father.

D.Mother.

（3）Why did Ryan want to put up a sign？ 　 　

A.To welcome people.

B.To feed sea animals.

C.To use the rubbish again.

D.To stop sea pollution.