I moved to the U.S.A last year.
问题描述：
I moved to the U.S.A last year.
改成it is ____ _____ since ____ _____ the U.S.A
答
I moved to the U.S.A last year.（同义句）
It is （one year） since （I moved to） the U.S.A
自从我搬到美国已经有一年光景了.改成完成时是另外一句？
I have lived in the USA for one year.不是另一句，就是it is ____ _____since ____ _____ the U.S.A我们蓝天书上的怎么可能！连动词is都给了，还能写出现在完成时吗？
现在完成时是have\has+过去分词。例句It is the first time i have seen the movieIt is one year since I've lived\been in the USA.
since后面应该是3个空。