问题
选择题
The baby kept on ______ until the mother came back.
A.cry B.cried C. Crying
答案
答案：C
题目分析：句意为;这个婴儿一直哭到妈妈回来。kept on doing sths是固定搭配，表示一直坚持做某事。故应选C。
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The baby kept on ______ until the mother came back.
A.cry B.cried C. Crying
答案：C
题目分析：句意为;这个婴儿一直哭到妈妈回来。kept on doing sths是固定搭配，表示一直坚持做某事。故应选C。