They for a year.A have borrowed the books B have gone toC have left home D have been in Ja

问题补充：

They for a year.

A have borrowed the books B have gone to

C have left home D have been in Japan

答案：

解析：根据时间状语有一年了可知句子为现在完成时，瞬间动词不能用于含有持续性时间状语的句子中，故选D。