问题:
--- Have you really been to visit the Bird’s Nest in Beijing?
---- I ______ it last summer vacation.
A.do visited
B.do visit
C.did visited
D.did visit
--- Have you really been to visit the Bird’s Nest in Beijing?
---- I ______ it last summer vacation.
---- I ______ it last summer vacation.
A.do visited | B.do visit | C.did visited | D.did visit |
参考答案: