There... and it...

​ (a)   is raining heavily outside. We should wait until ​ (b)   stops.

• There
• there
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• it

How far is ​ ​ (a)   from your house to the nearest train station?

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​ (a)   seems that nobody is home.

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• It

​ (a)   must be a reason why he didn't come.

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Look! ​ (a)   is a colorful bird in that tree.

• It
• There

​ (a)   used to be a cinema on this street, but (b)   was closed down last year.

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• There
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• It