题目内容
As soon as the dog called Kelly noticed the stranger __________ the house, it began __________.
A.entered, barked B.enter, barking C.entered into, to bark D.entering, bark
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题目内容
As soon as the dog called Kelly noticed the stranger __________ the house, it began __________.
A.entered, barked B.enter, barking C.entered into, to bark D.entering, bark