题目内容
用所给动词的适当形式填空
Look! A bird ________ (sing) in that tree and some boys ________ (look) up at it under the tree.
答案:is singing,are looking
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题目内容
用所给动词的适当形式填空
Look! A bird ________ (sing) in that tree and some boys ________ (look) up at it under the tree.