attempts前面加什麼介詞

前面加介詞to，例如：

1、The finding may also be relevant to attempts to control the spread of HIV.這一發現可能也與控制HIV傳播的努力有關。

2、Mr Gaertner did not respond to attempts to contact him.記者試圖聯繫高海納，但他沒有做出迴應。

3、Additionally， public corporations may be subject to attempts by third parties to acquire control of the corporation against the will of management.此外，公眾公司還可能遭受第三方違背公司管理層意志收購公司控制權的情況。