جملتين للمناقشة

[the discoverer]

أود أن تشاركوني حل هاتين الجملتين مع توضيح سبب إجابتك

I wish I ................ what I was doing at the weekend.
a- know b- had known c- knew d-was knowing
I wish I ................ where I left my jacket.
a) know b) had known c) knew d) could know