—Rebecca, have you decided what to do this Saturday?
—Not yet. I ______ volunteer at the old people’s home.
may
must
should
would
There ______ an art show this Sunday.
Her father is an _____ in a big factory.
My uncle is going to___ Dalian next year.
He may come,but I'm not sure ______ that.
I love music,so I'm going to learn how to ______ the piano this term.