1 . 观察句子，归纳句子时态以及谓语动词构成。
①I am currently adapting my daily routine to include more exercise.
②New regulations are being developed by the government to address environmental issues.
③The report is being written by the research team now.
④The board members are currently making a decision on the project proposal.
我的发现：
句①④使用了    1    ，其谓语动词的构成是    2    ；
句②③使用了    3    ，其谓语动词的构成是    4    ；