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 develop 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.
错选了A，and also可以这样用？
答案是d
我觉得是E
D , by studying 的逻辑主语是, a household nuisance 不通...
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