经过几周的培训，他现在能够独立完成这项任务了。

After weeks of training, he is now ___able to complete this task independently.

她是一位很有能力的医生，擅长处理复杂病例。

She is an ___able doctor who excels at handling complex cases.

只有18岁以上的顾客才能在这家酒吧购买酒精饮料。

Only customers over 18 are ___able to buy alcoholic drinks at this bar.