问题

Hello, May I speak to Mr Black—Sorry, he ______ Hong Kong for a meeting and he______ back in a week.
A:went; was
B:has been to; will be
C:has gone to; has been
D:has gone to; will be;
B:has been to; will be
C:has gone to; has been
D:has gone to; will be;
正确答案是: