i don't think jack____swim across the wide river如题a.can b.is able_英语解答

i don't think jack____swim across the wide river
如题
a.can b.is able to

人气：440 ℃　时间：2019-10-23 11:14:41

解答

can:表示与生俱来的能力而be able to：则表示能够所以选B