What he said sounds but it is impractical.A. interestingB. reasonableC. understandableD.

问题补充：

What he said sounds , but it is impractical.

A. interesting

B. reasonable

C. understandable

D. enjoyable

答案：

A. interesting

(答案→)B. reasonable

C. understandable

D. enjoyable

解析：可联系答.案.网客服索取。