wild geese change homes twice a year.(划twice和twice a year,划线提问)题目看补充( )( )( )a year( )wild geese change homes?( )( )( )wild geese change homes?

问题描述:

wild geese change homes twice a year.(划twice和twice a year,划线提问)题目看补充
( )( )( )a year( )wild geese change homes?
( )( )( )wild geese change homes?

1. How many times a year do wild geese change homes?
2. How often do wild geese change homes?

(How) (many) (times) a year (do) wild geese change homes?
(How) (often) do wild geese change homes?