"Autumn leaves turn brown." What's the structure of this sentence?
A．S+V+O B．S+V C．S+V+IO D．S+V+p
D
【解析】
句意：“Autumn leaves turn brown.（秋叶变黄了。）”这句话的结构是什么？考查句子结构。A. S+V+O：主语+谓语+宾语；B. S+V：主语+谓语；C. S+V+IO主语+谓语+间接宾语；D. S+V+p：主语+系动词+表语。本句的主语是Autumn leaves；brown是褐色的，形容词，做turn的表语，turn意思是“变得”，系动词。故此句结构是主系表；选D。
请根据句意从方框中选择合适的动词,并用其适当时态填空,使句子通顺
| nod achieve cheer control prepare |
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