用be动词的适当形式填空。There ________ a book on the desk.
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用be动词的适当形式填空。There________ an orange and two apples on the table.
用be动词的适当形式填空。How many chairs ________ there in your classroom?
用be动词的适当形式填空。There ________ two English books and a Chinese book in my bag.
用be动词的适当形式填空。What’s in the purse? There ________ some money.
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