[ Correlative Conjunction ]
The study aims to investigate ________ the genetic factors ________ the environmental influences.
A. either-or
B. not only-but
C. both-and
D. neither-for

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Grammar › ViewChoose the correct quantifier: “There are ___ books on the table.”
A. some
B. any
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(Lay, Lie) the money on the table.
A. Lay
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Engineer
A. A person who designs, builds, or maintains engines, machines, or structures.
B. A professional who manages financial investments and portfolios.
C. An individual who creates artistic works and designs.
D. A scientist who conducts experiments in a laboratory.
