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It_____________ heavily just now and the ground is still covered with white snow. ( was snowing, snowing )

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We _____________ our evening meal at half past seven yesterday, and then we watched a film on television. ( had, are having )

Whenever we visited them, they ____________ television. ( watched, were watching )

This was an arid desert ____________. ( until it was irrigated, until it had been irrigated )

I didn't meet Mary White at the party. She ____________ by the time I arrived. ( had left, left )

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