what's his size?

what's his size? what size 还是 what's size what's its size?About the size of Japan. what's your favorite family size? what's the size of A what's your size 换一种说法 what size are you fit?what sizes are what size what size of 为什么"What size of noodles would you like"中,"size"不为复数."What s what size are they/is it和what's your size可以互换吗 what' s his name? What's his name? What's his number?