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： 簡單

最佳解!
	吴志文小六下 (2012/06/06) 與現在事實.....看完整詳解檢舉

	4F 詹姆士大二上 (2017/10/23) 【秒殺文法】不可不知超實用的IF假設語氣，讓你看一次就明白！檢舉
	5F 業精於勤，事立於豫研一下 (2019/06/14) If the sun _____________ no gravity, the earth would fly towards some distant star. (假如太陽沒有了引力，地球就會朝向遙遠的恆星飛去。) (A) has (B) had (C) will have (D) would have 解法：表示不變的事實，用與「現在事實相反」的句型。假設句為過去式，結果句用would + 原形動詞檢舉

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