用所给词的适当形式填空 
All of us can get lots of presents on____ Day. (child)
Our school is big and beautiful. What about____?(they)
Be quiet! The mother with her twin babies____.(sleep)
You just need to practise____English more. (speak)
A good breakfast helps Amy____fit and health. (keep)
____ there a pair of trousers on the bed? I can't find mine. (be)
I don't know what____(choose) in the clothes shop.
There are some boys____ basketball on the playground. (play)
It takes me 2 hours ____ my homework every day. (do)
It's six o'clock now. Millie and Sandy____(not run) in the playground .

对于常数m、n，“mn>0”是“方程$m{x}^2+n{y}^2=1$的曲线是椭圆”的（   ）

①市政府发布《推进共享单车规范发展的建议工作方案》，各部门联动监管

②市政协把《关于加快推进共享单车规范发展的建议》移交主管部门办理

③市商务局开展调研，形成《关于加快推进共享单车规范发展的工作方案》

④市政协委员提交《关于加快推进共享单车规范发展的建议》的提案