---Where is your grandpa?

---He _________ Canada and __________ Toronto for a month.

A．has been to, has been in

B．has gone to, has been in

C．has been in, has been to

D．has gone to, has been to

商业汇票的持票人超过规定期限提示付款的，丧失（）的追索权，持票人在作出说明后，仍可以向（）请求付款。

A、对其前手、出票人

B、对出票人以外的前手、承兑人

C、对其前手、承兑人

D、对其前手、保证人