The writer and professor ________ to ________ abroad for two years.But no one knows which country he studied in.
A.are said; be studying
B.is said; have studied
C.are said; to study
D.is said; have been studying
对258人提供帮助
The writer and professor ________ to ________ abroad for two years.But no one knows which country he studied in.
A.are said; be studying
B.is said; have studied
C.are said; to study
D.is said; have been studying
对258人提供帮助