—Where are the girls? —They _______ the
问题:
—Where are the girls?
—They _______ the zoo.[ ]
A. have been to
B. have gone to
C. have been in
D. have gone in
—Where are the girls?
—They _______ the zoo.[ ]
A. have been to
B. have gone to
C. have been in
D. have gone in