and 只能用于肯定句or只能用于否定句和疑问句吗

不是这样说的,是and和or 都表示“和”的意思时,and用于肯定,or用于否定。I like bananas and applesI don't like bananas or apples作为或者讲时or可以用于肯定句比如：He is his father or uncle。