【单选题】Some linguists believe that the ______ age for children learning a foreign language is 5 to 8.
A.optimistic
B.optional
C.optimal
D.oppressed
【单选题】Some linguists believe that the ______ age for children learning a foreign language is 5 to 8.
A.optimistic
B.optional
C.optimal
D.oppressed
发布评论 查看全部评论