（1）When did Frank go on a trip to Nature World？
A.Last Friday.
B.Last Saturday.
C.Last Sunday.
（2）What can the animals do in Nature World？
A.Walk around.
B.Sit in the cage.
C.Fly around.
（3）How many types of water plants are there in the park？
A.More than 400.
B.More than 450.
C.More than 500.
（4）What animal can do Maths problems in Nature World？
A.A duck.
B.A monkey.
C.A parrot.
（5）How did Frank feel after taking the trip？
A.Happy.
B.Nervous.
C.Surprised.