-- The boy can speak both English and Japanese he is only ten. Wow what a clever boy!

问题补充：

-- The boy can speak both English and Japanese he is only ten.

-- Wow, what a clever boy!

A. if B. because C. though

答案：

解析：句意：上句虽然这个男孩仅仅才十岁但是他机会说英语也会说日语A. if如果 B. becaus因为C. though虽然尽管,故选A。