把主动语态改为被动语态

问题描述:

把主动语态改为被动语态
if you wonder what you can do to help people suffering from the snowstorm,please refer to 24 hours hotline of this embassy.
the government has taken effective measures to prevent the diseases from spreading quickly

if you wonder what you can do to help people suffering from the snowstorm,the 24 hours hotline of this embassy will be referred to.
Effective measures have been taken quickly by the government to prevent the diseases from spreading.
if引导的从句是不可以改为被动语态,只能改后半句.