kate ___swim when she was six years old.she was so clever.a:be able to b:is able to c:was able to d:was ble
问题描述：
kate ___swim when she was six years old.she was so clever.
a:be able to b:is able to c:was able to d:was ble
答
选C
这是一个过去时态的句子
应该用过去式
be able to do 固定词组
有能力做某事
答
C was able to
be able to do sth.能,会
用一般过去时 was able to
翻译：当她6岁时就会游泳.她如此的聪明.
不明白的再问哟,请及时采纳,多谢!