A:Yes, I do.
B:No, I am not.
C:What about you?
翻译下列句子,
①独学而无友,则孤陋寡闻 ②一片丹心图报国,两行清泪为忠家
③学而不思则罔,思而不学则殆 ④独在异乡为异客,每逢佳节倍思亲