U0 Grammar: a/an

Choose the correct answer.
​ (a)   apple

• an
• a

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Pedro is ____ boy.

• a

• an

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This is​ (a)   orange.

• an
• a

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​ (a)   pencil case

• a
• an

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Martina is _____ girl.

• an

• a

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four ​ (a)  

• pens
• pen

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This is _________ picture.

• a

• an

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two​​ (a)  

• rubbers
• rubber

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This is​ (a)   ruler.

• a
• an

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​ (a)   cake

• a
• an