Kate's dad is getting old. She will go back home to see him _____it is convenientA. because B. whenever C. although D. unless

Kate's dad is getting old. She will go back home to see him _____it is convenient
A. because
B. whenever
C. although
D. unless

B
whenever=any time that...任何时间

B。
翻译：Kate的爸爸年纪大了。只要Kate一方便就会回家看他。

B. kate的爸爸老了 她一有时间就回去看他

B.Kate的爸爸年纪大了。只要时间方便她就会回家看他