whose，开头字母要大写吗

用在句首时大写，其它不用大写。

whose是物主代词，意思为“谁的”，在句中不用大写，例如I saw a man shouting at a driver whose car was blocking the street.如果whose在句首，就必须大写，例如Whose bag is this？

whose，开头字母要大写吗

答：whcse，可以不大写。