Mom: Why you smiled（微笑）happily in the morning? Daughter: I _____ a wonderful（美好的） dream（夢） last night. I _____ in a park, the sun was shining（照耀）, and the birds were singing. It was very peaceful（和平地）. I didn’t want to wake up.　

A. had; sitting

B. having; sitting

C. have; sit

D. had; was sitting