The earth is one of the _______ pianets and it goes around the sun. A.sun B.suns C.suns' D.sun'sWith their help,man has known the ______(A.earth B.sun C.stars D.satellites) better than before and has done better _______(A.on B.in C.about D.with) many fields of science
问题描述：
The earth is one of the _______ pianets and it goes around the sun. A.sun B.suns C.suns' D.sun's
With their help,man has known the ______(A.earth B.sun C.stars D.satellites) better than before and has done better _______(A.on B.in C.about D.with) many fields of science
答
答案：D, A, B。
解释：地球是太阳其中的一颗行星，这里要用名词的所有格形式，即：the sun's planets。第二空：根据上下文，判断这里应该是：the earth。第三空：在...领域，介词用in。
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答
D
D
B
答
选D.A.B.