My friends face up to life with smiles and smiling ____ sometimes with tears in eyes.
问题描述：
My friends face up to life with smiles and smiling ____ sometimes with tears in eyes.
A unless B before Cthough Das
选C （为什么不选D?）
as 不也是尽管？
答
尽管我的朋友有时眼含泪水,但他仍然勇敢的笑对人生
as adv.同样地,被看作,象
prep.当做
conj.与...一样,当...之时,象,因为
没有表转折的意思,
而though虽然,尽管,用在这里就可表转折.