7. Not only ______to London but also______there for a time.
A.has he been ; he worked
B.has he been; did he work
C.he had been; did he work
D.he has gone ; did he work
正确答案是A
7. Not only ______to London but also______there for a time.
A.has he been ; he worked
B.has he been; did he work
C.he had been; did he work
D.he has gone ; did he work
正确答案是A