A. Whales breed in winter.
B. Young whales are given birth in cold waters.
C. Alaska fur seals give birth to the young only in one area.
D. Alaska fur seals are born in warm weather.
86. Together ______ of Alaska fur seals swim down the Pacific Coast of North America.
A. mothers and the young
B. fathers and the young
C. parents and the young
D. seals and whales
87. Which of the following is NOT described in the passage?
A. Whales migrate to breed and give birth to their young.
B. Whale-watching in Boston in summer is attracting.
C. Seals breed in the north before migration.
D. Reindeer feed on grass.
88. Whales live on ______
A. tiny plants and animals in the sea
B. the grassy slopes of northern Canada
C. their young in cold winter
D. the abundant seafood in tropic waters
89. How many kinds of migrating mammals are mentioned in the passage?
A. Four. B. Three.
C. Two. D. One.来自www.Examw.com
90. What is the best title of the passage?
A. Three Types of Whales
B. Birds Migration
C. Mammals Also Migrate
D. Several Kinds of Migration
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