Robots know________to help us.? (??)

A．what

B．how

C．why

Read and write(根据首字母，写出合适的单词完成句子)
【小题1】In spring, the wind blows g_____________, and the windmill moves s___________
【小题2】Listen! The girl is singing a song h______________.
【小题3】The dolphin can swim q_______________in the sea and jump very h_____________

Millie ___ plays volleyball because she doesn’t like it. (    )

A．sometimes

B．usually

C．seldom

D．always

( )

A．Wild geese will fly south in autumn.

B．Wild geese will fly north in autumn.

C．Wild geese will fly twice in winter.

选出不同类的一项：(   )

A．where

B．what

C．sleep