网址：http://m.1010jiajiao.com/timu3_id_3121816[举报]
She has just swallowed a dumpling __________.
A. at a mouthful B. with a mouth
C. at mouthful D. with mouth
She has just swallowed a dumpling __________．
A．at a mouthful B．with a mouth
C．at mouthful D．with mouth