用calm sb down、 have got to 、be concerned about、walk the dog、

We calmed the old lady down.
我们使老太太平静下来.
We have got to solve this problem before tomorrow.
我们必须在明天之前解决这个问题.
She is concerned about your safety.
她不放心你的安全.
I must walk the dog;he hasn't been out today.
我必须带狗去散散步;它今天还没出去过.
She helped the child loose the laces of his shoes.
她帮孩子解开鞋带.

vcjjk

高一英语必修一第一单元词汇，顺序都没乱