_______from space,our earth,with water covering 70/ of its surface,appears as a "blue planet".A SeenB SeeingC Having seenD TO see为什么选A不选C啊`~`麻烦结实下`~`70旁边的是百分号~

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_______fromspace,ourearth,withwatercovering70/ofitssurface,appearsasa"blueplanet".ASeenBSeeingCHavin

_______from space,our earth,with water covering 70/ of its surface,appears as a "blue planet".A SeenB SeeingC Having seenD TO see为什么选A不选C啊`~`麻烦结实下`~`70旁边的是百分号~
_______from space,our earth,with water covering 70/ of its surface,appears as a "blue planet".
A Seen
B Seeing
C Having seen
D TO see
为什么选A不选C啊`~`麻烦结实下`~`70旁边的是百分号~

_______from space,our earth,with water covering 70/ of its surface,appears as a "blue planet".A SeenB SeeingC Having seenD TO see为什么选A不选C啊`~`麻烦结实下`~`70旁边的是百分号~
因为这个句子的主语是our earth,地球是被看,所以直接用过去分词就可以了.having seen 其实不是一个过去分词,而是一个完成时的现在分词,根据字的主语地球应该是一种主动关系,不表被动而是表完成.

A
表示earth被see,用被动语态
不需要用完成时

选A表示被动，仅仅是表示一般的状态，无需用have.

很明显是A,被动语态做状语

space space 1._______from space,the earth looks like a huge water covered globe.a Having seenb Seeingc To seed Seen请选出此题的正确答案,并详细分析下. _______from space,our earth,with water covering 70/ of its surface,appears as a blue planet.A SeenB SeeingC Having seenD TO see为什么选A不选C啊`~`麻烦结实下`~`70旁边的是百分号~ plus ou ou menorg chateauueuf ou 莲OU的OU字怎么写? Merry.Space English Space space travel SPACE是什么意思 the space space 复数 my space empty space 和empty space cap ou pas cap en moins ou en