He goes away without _____ goodbye to me.

He goes away without _____ goodbye to me.
A.say
B.says
C.saying
D.to say
---------------------------------------
We must keep the window _____
A.to close
B.close
C.closing
D.closed
---------------------------------------
We celebrate Spring Festival by _____ presents to each other.
A.give
B.to give
C.gave
D.giving