未知题型 选择题stick together because

未知题型 There is no evidence【 that】 antibiotics, anti-viral medicines or steroids help, so doctors can offer only supportive care.我知道这是同位语从句，不缺成分，所以【】里用that不用whether,但我有2个问题：1.如果一定要用whether的话，这句子该怎么变呢？2.填whether不对的原因还有什么？感觉whether也很顺口

未知题型 M: Would you like to see those pants in brown and navy blue? These two colors are coming in this season.　　W: Oh, actually grey is my favourite color, but I prefer something made from cotton, 100% cotton I mean.　　Q: What is the woman looking for?短语怎么回答