18. If the sun _____________ no gravity, the earth would fly towards some distant star.(A) has (B)

問題詳情

18. If the sun _____________ no gravity, the earth would fly towards some distant star.
(A) has
(B) had
(C) will have
(D) would have

答案：B
難度：適中0.606618
統計：A(55),B(165),C(6),D(17),E(0)

文法:假設語氣此題考"表示不變的事實"

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