用括号中所给动词的正确形式填空 １.If they _____(not help )us ,our experiment would have failed. 我的答案：have not help正确答案：had not helped不知为什么？请翻译中文 ２.If we had been more careful,we__... 展开
用括号中所给动词的正确形式填空 １.If they _____(not help )us ,our experiment would have failed. 我的答案：have not help正确答案：had not helped不知为什么？请翻译中文 ２.If we had been more careful,we_____(get)much better results now. 我的答案：would get 正确答案：would have got不知为什么？请翻译中文． 收起
