判断下列句子是升调还是降调 ,升调请用A,降调 请用B

问题描述:

判断下列句子是升调还是降调 ,升调请用A,降调 请用B
()1 1s this your handbag?
() 2 what colour are your shoes?
() 3 i don't like the green sweater
() 4 can i have some apples?

A B B A