题目内容
I failed again. If only I ________ careful enough!
- A.was
- B.had been
- C.would be
- D.am
B
导解:表示对已发生事情的遗憾,if only后的谓语动词应用had done形式.
导解:表示对已发生事情的遗憾,if only后的谓语动词应用had done形式.
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I was supposed ____ her, but I failed.
| A.to help | B.to have helped | C.to be helping | D.will help |