A. When
B. Why
C. in
D. What
Mike: ____ is your favourite season ,Sarah?
Sarah: Summer.
Mike: ____ do you like summer?
Sarah: Because we wll have a party at home 0n Children's Day.
Mike: ____is Children's Day?
Sarah: It's ____ Jane.
一位农民说:“如果能卖到2000元一斤,我能在北京种出柑橘。”从这句话可看出农业生产归根结底取决于( )
A、B是一个连通器的两个上端开口,当用一个管子沿B开口吹气时,A开口一端的液面会____(选填“上升”、“下降”或“不变”).
“读书学习要注意劳逸结合,坐久了要适当活动一下身体。”这句话中“活动”的意思是第( )个。
下列词语中加线的字,注音全都正确的一项是( )