摘要： years ago, very large animals called dinosaurs in some areas of the world. A. Many million, have been living B. Million, had lived C. Several millions of, are alive D. Millions of, lived
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_____ years ago, very large animals called dinosaurs _____ in some areas of the world.
[ ]
A. Many million; have been living
B. Million; had lived
C. Several millions of; are alive
D. Millions of; lived
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B. Million; had lived
C. Several millions of; are alive
D. Millions of; lived