The book which for children under 10 when are popular with adult readers. A. intended

问题补充：

The book, which for children under 10 when , are popular with adult readers.

A. intended; written

B. was intended; being written

C. intended; writing

D. was intended; written

答案：

A. intended; written

B. was intended; being written

C. intended; writing

(答案→)D. was intended; written

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