able to do be able+不定式有这样的短语吗?

be able to do sth Will she ( ) do the work?A.be able to B.able to C.is able to 用be able to do sth造句 be able to do sth 等于什么 be able to do sth 意思 用法! 英语 翻译 be able to do sth 怎样用be able to do造句? be able to do sb.a faver Do not you be able to be able to do sth be able to do sth 的同义词是什么? be able to 用法 be able to中文 able to be assigned be able to be able to (送分拉) 请问：be able to be able to 意思 may not able to do sth 还是 may not be able to do sth?