直接引语中带从句的句型怎么变间接引语“only if I can provid good result ,everything will be fine " I guessed这句话怎么变间接英语,其中时态又怎么转换

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直接引语中带从句的句型怎么变间接引语
“only if I can provid good result ,everything will be fine " I guessed这句话怎么变间接英语,其中时态又怎么转换