【单选题】【消耗次数：1】
Televisions enable us to see things happen almost at the exact moment _____.
①
which they are happening
②
they are happening
③
which they happen
④
they have happened
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【单选题】
Televisions enable us to see things happen almost at the exact moment _____.
①
which they are happening
②
they are happening
③
which they happen
④
they have happened
【单选题】
Televisions enable us to see things happen almost at
the exact moment ____.
①
which they are happening
②
they are happening
③
which they happen
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they have happened
【单选题】
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She wonders ____will happen to her private life in the future.
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