[单选题]_______ Mars is the possible planet for human to survive in the future is generally agreed upon by authorities in the field.(1分)
AUntil the
BIt was the
CThe
DThat the
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参考答案
试题答案:
D
答案解释:
解题思路: 本题考查主语从句的用法。根据题意“该领域的权威们普遍认为,火星将来可能成为供人类生存的星球”。 句中“_______ Mars is the possible planet for human to survive in the future”是整个句子的主语,在引导主语从句时,应用that,而that不能省略,因为其他三项分别填入题干后均不能构成主语从句,故正确答案为D)选项。