They __________ two free tickets to Canada, otherwise they’d never have been able to afford to go.

A. had got      B. got

C. have got     D. get

B


解析:

B。句子前半句講的是過去的事實(shí)，用一般過去時(shí); 后半句講的是對(duì)過去情況的假設(shè)，故用了would never have been這樣的形式

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