1 . The socks are $4 for one pair. So I need $ ________ to buy three pairs.
| A．eight | B．twelve | C．twenty |
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2 . It’s October 10th. Lucy is ________ years old now. Today is her ________ birthday.
| A．twelve；twelfth | B．twelfth；twelve |
| C．twelve；twelve | D．twelfth；twelfth |
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3 . It is Kate’s ________ birthday party. She is ________ years old now.
| A．twelve; twelve | B．twelfth; twelfth | C．twelve; twelfth | D．twelfth; twelve |
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4 . There are ________ months in a year, and December is ________ month.
| A．twelve; twelve | B．twelve; the twelfth | C．the twelfth; twelve | D．the twelfth; the twelfth |
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5 . There are ________ floors in our school building. My classroom is in the ________ floor.
| A．twelfth; twelves | B．twelve; twelfth |
| C．twelve; twelveth | D．twelve; twelfths |
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6 . The girl is ________ . Today is her ________ birthday.
| A．twelfth; twelfth | B．twelve; twelfth | C．twelfth; twelve | D．twelve; twelve |
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7 . There are ________ months in a year. And September is the ________ month of a year.
| A．twelve, nine | B．twelve, ten | C．twelve, ninth | D．twelfth, tenth |
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8 . —What’s nine and twenty-one?
—It’s ________.
—It’s ________.
| A．twenty | B．twelve | C．thirty | D．thirteen |
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9 . There are ________ months in a year and December is the ________ month.
| A．twelve; twelfth | B．twelfth; twelfth | C．twelve; twelve | D．twelfth; twelve |
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