--- Where is your mother?
--- She has ______ to Sichuan on business. She has ______ there four times recently.
A.gone, gone | B.been, been | C.gone, been | D.been, gone |
--- Where is your mother?
--- She has ______ to Sichuan on business. She has ______ there four times recently.
A.gone, gone | B.been, been | C.gone, been | D.been, gone |