找朋友。（选出所给句子的答句，将其字母代号填在括号内。）
There __________ some books and a clock on the desk. The clock ________three hands.
---Excuse me, do you have any erasers? ---__________________.
---What can you see in the bag? ---______________. Oh, they are pencil-boxes.
There aren’t ____________ pears __________ the tree.
---Whose watch is this? ---Is it a black _________?
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