18世纪后期，冲破沙俄围追堵截的土尔扈特是（）

A.漠南蒙古的一支

B.漠西蒙古的一支

C.漠北蒙古的一支

D.蒙古高原上的一支

Greatly moved by what she did,      .   [      ]

A. I could hardly hold back my tears    

B. my heart was full of gratefulness

C. my eyes were filled with tears        

D. tears came to my eyes