-We'resorrytohearthatDonnafailedagain.-Ifshe____(work)harder,shewouldhavesucceededthistime.
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题目内容：
-We're sorry to hear that Donna failed again.-If she ____ (work) harder,she would have succeeded this time.
优质解答
这是与过去相反的虚拟语气
答案是 had worked.
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