单项选择题

(Some) methods (to prevent) soil erosion(侵蚀) ) (are) plowing parallel with the slopes of hills, (to plant) trees on unproductive land, and rotating crops.（）

A. Some
B. to prevent
C. are
D. to plant

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He came out with such an elaborate excuse that I didn't quite believe him.（）

A．good
B．beautiful
C．detailed
D．fine-sounding
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You are legally entitled to take faulty goods back to the store where you bought them.（）

A．have the right to
B．have the title to
C．have the honor to
D．have the pleasure to
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