I ________ a couple of ringed seals, several eider duck, many Arctic terns and kittiwakes and a few scruffy immature glaucous gulls before I ________ into my bunk to sleep.
句意：在我爬进铺位睡觉前，我看了几只环纹海豹、几只绒鸭、许多北极燕鸥和三趾鸥，还有几只 邋遢的小北极鸥。爬进铺位睡觉是发生在过去的事，因此用过去时。而看鸟类是在睡觉之前，应该用过去 完成时。因此，本题的正确答案为B。