| 1. 单选题 | 详细信息 |
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Look at these sheep.
A . Yes, they are.
B . Wow! They're so cute!
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| 2. 单选题 | 详细信息 |
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What are these?
A . This is a tomato.
B . They're tomatoes.
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| 3. 单选题 | 详细信息 |
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Try some. They're good.
A . Welcome.
B . Thanks. Yum.
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| 4. 单选题 | 详细信息 |
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Are they horses?
A . Yes, they are.
B . They're so tall!
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| 5. 单选题 | 详细信息 |
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How many hens do you have?
A . Ten.
B . Yes, they are.
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