Had I run out of gas, I ought to have called the garage.

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问题 Had I run out of gas, I ought to have called the garage.

选项 A、had
B、would have.
C、would
D、should have

答案B

解析 本句考察虚拟语气的用法:本句前面部分是表示与过去事实相反的虚拟条件从句,后面的主句谓语应用should/would/could/might+have+过去分词;因此选项B为答案。
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