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involved in involving in was involved involved
A number of scientists found genes in the 18th and 19th centuries. Scientific discoveries were made one after another in the 18th and 19th centuries. Many scientists succeeded in finding out how the features of living things were passed on to the next generation in the 18th and 19th centuries. It took a long time for scientists to find out why members of the same family look like each other.
In; at On; to In; in On; at
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much cheaper much lower more expensive much higher
many of his songs many of whose songs many of which songs and many of whose songs
take on put on carry on get on
as many twice; worse as many twice; bad twice as many; good twice as many; better
where were the 30th Olympic Games held when London hosted the 30th Olympic Games which record was broken at the Olympic Games how many medals did they get at the Olympic Games
How often How soon How long How many
How often How soon How long How many
many of his songs many of whose songs many of which songs and many of whose songs
as much as pollution pollutions as many as as much pollution as so many pollutions as
a variety of a large number larger numbers of a great many
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