WE STARTED COOKJING FOR THE PARTY FOUR HOURS AGO.A. WE HAVE BEEN C...

199/We started cookjing for the party four hours ago.

A. We have been cooking for the party for four hours.

B. We have been starting cooking for the party for four hours.

C. We have been starting to cook for the party for four hours.

D. We have been cooking for the party during four hours.