The exam will be on the first half of the book.That means we’ll have to finish.A. fifteent

问题补充：

The exam will be on the first half of the book.That means we’ll have to finish.

A. fifteenth chapter

B. fifteen chapter

C. chapter fifteen

D. chapter fifteenth

答案：

A. fifteenth chapter

B. fifteen chapter

(答案→)C. chapter fifteen

D. chapter fifteenth

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