[ Passive Voice in Past and Present Tense ]
They didn’t make their beds.
A. Their beds are not made by them.
B. Their beds was not made by them.
C. Their beds were not made by them.
D. Their beds were not made by them.

Random Topics:
Grammar and Sentence StructureThe Future Simple TenseMixed TensesAdjective or AdverbZero ConditionalFuture Tense - will and going toModals of Speculation and DeductionAdjectiveSo, Such, Many, MuchPresent Perfect or Past Simple TenseOther quiz:
Grammar › ViewThe Imperial Citadel of Thang Long is also an interesting __________area everyone should pay a visit.
A. geographical
B. archaeological
C. geothermal
D. geological
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Don’t let the children __________ late in the evening.
A. going out
B. go out
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Grammar › View… many times every winter in LA.
A. it’s snowing
B. it snowed
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A nest of hornets (was, were) in the barn.
A. was
B. were