用所给单词的适当形式填空。
⑴There _______ (be) any birds in the sky.
⑵There are 5 basketball _______ (play) in every team.
⑶There isn’t _______ (some) knife in the room.
⑷There _______ (be) a pencil in my pencil box.
⑸There _______ (be) some flowers and a desk in the room.
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