用may,must,can,can't,should填空,

问题描述:

用may,must,can,can't,should填空,
1.You ______ do it,so ____ I.
2.I'm not sure about the news.It ________ or ______ not be true

1.You can do it,so can I.
2.I'm not sure about the news.It may or may not be true