lucy could speak english when she was ten yeaes old,同义句 lucy ___ ___ ___ speak english at the ege of ten.
问题描述：
lucy could speak english when she was ten yeaes old
,同义句 lucy ___ ___ ___ speak english at the ege of ten.
答
was able to
答
was, able ,to
答
lucy could speak english when she was ten yeaes old
=
lucy was able to speak english when she was ten yeaes old
could=be able to=能够