题目内容：

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

Shared bike companies discourage the use of removable child seats on their bikes and warn that users must take full responsibility for any accidents 1.(involve) a child seat.

The child seats, which can be attached 2.different brands of shared bikes, popped up in online marketplaces with advertisements claiming the products are safe, 3.(reliance) and easily attached and removed from the bikes. But several bike-sharing companies including Ofo, Mobike and Mingbikes released statements saying their user agreements 4.(express) forbid carrying extra passengers on the bikes because of safety risks, and warning that they assume no legal responsibility if a violation leads to 5.accident.

Ofo said its on-street personnel, 6.mostly shift bikes between locations depending on demand, will attempt to persuade bike users to remove child seats if they spot them. If 7.(persuasive) fails, employees are instructed to contact the police, it said.

A Mobike employee in the public relations department who asked not 8.(name) said the company has been contacting online shopping websites that sell the detachable child seats, including Taobao, and asking them to remove the product because of safety concerns.

“We 9.(negotiate) with Taobao and other shopping websites to remove the child seats from the 10.(shelf), but the initiative is in the hands of the websites,” the employee said.

Taobao said negotiations with Mobike are ongoing.