用所给短语的适当形式填空

in my opinion　afraid of　go skiing　go on　on business

1.Don't stop! Let's ________ reading it.

2.________,using cellphone has a lot of good effects (影响).

3.My brother will go to New York________next week.

4.Don't be ________ the dog.It is friendly to us.

5.When I have free time,I would like to ________ with my sister.

根据我国《建设工程质量管理条例》的规定，施工单位( )按照工程设计要求、施工技术标准和合同约定，对建筑材料、建筑构配件、设备和商品混凝土进行检验，未经检验或具有不合格的，不得使用。

A．可以

B．必须

C．应当

D．有权