选择题:-Have you ever travelled abroad?-Sure ,I _C__ the language of English in the USA.
选项:
A.will study
B.was studied
C.used to study
D .was used to study.
选择题:-Have you ever travelled abroad?-Sure ,I _C__ the language of English in the USA.
选项:
A.will study
B.was studied
C.used to study
D .was used to study.