infants with low muscle tone 怎么翻译

英语疑问
Those infants are badly in need of our help,so I’m afraid we can stay abroad only --------
A one and a half weeks b one and a half week
Key:a
怎么表达用week单数?
Here are all kinds of mobile phones in the center.together with----made in china,you can also find-----phones imported from Japan and other Asian countries.
A ones…some b those a few
Key:b
A为什么不对?
You must try to be brief and----when you speak.
A to the point b at the point c hit on the point d directly stay at the point
Key:a
to the point是什么成分阿?是try to the point吗?但try to 后面不时应该加do么?
Standing there still watching the exciting match,the announcer felt something hard----on his right shoulder.
A laid b lay
Key:a
不是Feel sb do/doing 应该用b阿
It’s already 10.i wonder why----person has beeni in the hall so far
A no single b not a single
Key:b
A为什么不对啊?
It is known to everyone that high management and production costs will definitely lead to high --------in the market.
A values b prices
Key:b
A为什么不对啊?

英语两个句子之间连接的问题
Infants sleep sixteen to eighteen hours daily,the amount gradually decreases as they grow older.
题目里看到的,想不通怎么可以不用连词就这么摆两个句子.
【是道改错题里的,原题“decrease”那给的“increase”,根据语境应该改成“decrease”,我想这里应该是独立主格结构,改了'decreasing',可是答案给的是“decrease”.现在经常在文章里看到这样随便用个逗号就连接两个句子的,= =】

this theroy explains the potential that human infants have for learning language.中的have

It is doubtful whether infants could survive outside the____network of the family.
A moderate
B suspicious
C intimate
D generous
请问哪个是正确的呢,为什么?

英语翻译
Not suitable for infants under 12 months.Store in a cool place away from direct sunlight.If honey consistency hard,warm to soften.Consume within 12 weeks of opening.

英语翻译
He found that nine month old infants could be taught through repeated show and tell to recognize the names of objects that were foreign to them,a result that challenges in some ways,the received wisdom that apart from learning to identify things common to their daily lives,children don’t being to build vocabulary until well into their second year.