用所给单词的适当形式填空。
Would you like to have dinner with____(we)?
Help____ （you） to some fish, children.
I'd like three ____(cup) of tea.
There ____ (be) some water in the bottle.
Is he a driver or a____(cook)?
Please give ____ (he) some orange juice.
Some____(America) live in Hainan now.
He ____ (teach) in a school
Please look at____(Ann) family tree.
Is your son a ____ (work)?

有的同学一边听课一边转手中的笔，有的还一边做题一边转笔，这是（    ）

有氧呼吸的三个阶段中，二氧化碳产生于（　　）

先取甲、乙、丙、丁四种金属粉末，分别投入相同浓度稀盐酸中，只有甲、乙能产生气体，乙反应更剧烈；再取一小块丁投入丙的化合物溶液中，丁的表面有丙析出．则甲、乙、丙、丁四种金属的活动性顺序为（　　）