The ancient Egyptians _____________(被假定已发射过火箭)to the moon.are supposed to have s

游客2024-02-17  4

问题 The ancient Egyptians _____________(被假定已发射过火箭)to the moon.

选项

答案 are supposed to have sent rockets

解析 本句考查对被动语态和不定式的完成式的掌握。首先,表示“被假定…”,应该用“are supposed to…”;其实,“已发射过火箭”这一动作明显位于谓语动词are supposed之前,故应采用不定式的完成式。
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