Anthropologists agree that our primitive ancestors who inhabited the tropics pro

游客2023-11-27  6

问题 Anthropologists agree that our primitive ancestors who inhabited the tropics probably have natural protection against the sun.

选项

答案 have—had

解析 译文:人类学家赞同:生活在热带地区的远古祖先可能天生具有抵御阳光的保护力。
分析:考查时态。that从句的主语是our primitive ancestors(我们远古的祖先),其谓语动词只能用过去时态,不能用现在时。此处have应改为had。
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