답변을 얻은 뒤 반드시 감사의 덧글을 남기고, 좋은 답변은 채택해 주시는 센스...
질문할 때 예의를 지키시기 바랍니다.(빨리... 고수분만..... 이런 식의 요구는 자제 바랍니다.)
질문 내용 :

However there is a possibility (1)that other lifestyle or dietary factors could be causing this-factors that weren’t included in the study. The scientists admitted that just removing meat from the diet would not be enough to lose a lot of weight. There was also an issue with the results as the participants reported their own weight at the end of the study, (2)leading some to believe that the results are not reliable.
Sian Porter, a dietician and spokeswoman for the British Dietetic Association영국 영양사 협회, said the results weren’t perfect. However she said the report was interesting and there could be some truth in it. “What I say to my patients (3)is to think about variety - (4)so have an egg for breakfast instead of bacon, cheese for lunch instead of ham and fish for the evening meal,” she said.
If meat does lead to weight gain are you ready to cut meat out of your diet?이문장을 분석하는데...
(1) that 이 3개 각자 어떻게 되는지 알려주세요.. 접속사절인지...잘모르겠어요.. (2) leading 이 여기서 어떻게 해석되는거에요?(3) is왜 단수취급인가요?(4) so 여기서 어떻게 쓰이나요 ? so용법...