题干
I've not seen him for a long time. He becomes stronger and more polite .
A：also
B：either
C：as well
D：as well as
答案(点此获取答案解析）
C
I've not seen him for a long time. He becomes stronger and more polite .
A：also
B：either
C：as well
D：as well as
，
，若
，则