1.I can't find my pen.Where is it?-----It may be in your des

1.I can't find my pen.Where is it?-----It may be in your desk.----______
A.So it is B.So is it C.Neither it is D.Neither is it
2.If you go to the museum tomorrow,______.
A.so l do B.so l will C.so do l D.so will l
3.If your wife doesn't go to the party,______.
A.so will mine B.so mine will C.neither will mine D.neither mine will