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nafiul9090
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Studying the fruit fly, a household nuisance but a time-honored experimental subject, has enabled
the secrets of how embryos develop to begin to be unraveled by scientists.
A. Studying the fruit fly, a household nuisance but a time-honored experimental subject, has enabled
the secrets of how embryos develop to begin to be unraveled by scientists.
B. By the study of the fruit fly, a household nuisance and also a time-honored experimental subject,
it was possible for the secrets of how embryos develo0p to begin to be unraveled by scientists.
C. By studying a household nuisance but a time-honored experimental subject, the fruit fly enabled
scientists to begin to unravel the secrets of how embryos develop.
D. By studying the fruit fly, a household nuisance and also a time-honored experimental subject, the
secrets of how embryos develop are beginning to be unraveled by scientists.
E. The study of the fruit fly, a household nuisance but a time-honored experimental subject, has
enabled scientists to begin to unravel the secrets of how embryos develop.
confused between opA and opE
the secrets of how embryos develop to begin to be unraveled by scientists.
A. Studying the fruit fly, a household nuisance but a time-honored experimental subject, has enabled
the secrets of how embryos develop to begin to be unraveled by scientists.
B. By the study of the fruit fly, a household nuisance and also a time-honored experimental subject,
it was possible for the secrets of how embryos develo0p to begin to be unraveled by scientists.
C. By studying a household nuisance but a time-honored experimental subject, the fruit fly enabled
scientists to begin to unravel the secrets of how embryos develop.
D. By studying the fruit fly, a household nuisance and also a time-honored experimental subject, the
secrets of how embryos develop are beginning to be unraveled by scientists.
E. The study of the fruit fly, a household nuisance but a time-honored experimental subject, has
enabled scientists to begin to unravel the secrets of how embryos develop.
confused between opA and opE

















