Thegrandfatherwas________toseehis

发布时间：2020-07-27 16:53:14

The grandfather was ________ to see his grandson playing ________．A.happy…happyB.happy…happilyC.happily…happilyD.happily…happy

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B解析be happy(happy为形容词)，play happily(动词play后面用副词)．
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