[ Grammar ]
When the robbery______, the safeguard______.
A. happened / slept
B. was happening / was sleeping
C. was happening / slept
D. happened / was sleeping

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A. How
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The children __________ every Sunday evening.
A. study
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A. a
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Debbie has got a cat. _________ cat is very lively.
A. my
B. her
C. its
D. it’s