CÂU PHỤ NÀO THÍCH HỢP- which sub clause is suitable?

I haven’t seen her

                although she left for SG

                then she left for SG

                after she left for SG

                before she left for SG

                when she left for SG

                while she left for SG

                so that she left for SG

                as she left for SG

                if she left for SG

                once she left for SG

                even if she left for SG

                unless she left for SG

                whether or not she left for SG

                although she left for SG

                as if she left for SG

                as soon as she left for SG

                that she left for SG

                than she left for SG

                by the time she left for SG

                as though she left for SG

                in spite of she left for SG

                since she left for SG

                because she left for SG