( ) 2. Kate's dad is getting old. She will go back home to see him she is
free.
A. since B. whenever
C. although D. unless
2. B句意为"无论何时有空，她都会回家看她爸爸。"since意为"既然"；although意为"尽管"；unless意为"除非"。故选B。
搜索
