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
參考答案
答案：B
難度：適中0.579661
統計：A(57),B(171),C(11),D(29),E(0)
用户評論
【R】評論
是因為與現在事實相反才使用had如果與過去事實相反用had had阿如果是真實的則用has