Question

question 3
which sentence correctly joins ideas with an -ing modifier (gerund modifier)?
a peering through the microscope, my sister observed the bacteria she received last week from a veteranarians office.
b my sister was peering through the microscope, bserving the bacteria she received last week from a veteranarians office.
c peering through a microscope is a common task for my sister, who is a microbiologist.
d she enjoys peering through a microscope to observe bacteria.

Explanation:

In option A, "peering through the microscope" is an -ing modifier (gerund - like present - participle modifier) that clearly shows the action happening while the main action "observed" occurs. It correctly modifies the subject "my sister". Option B has a spelling error "bserving". Option C uses "peering through a microscope" as a subject rather than a modifier for an action. Option D does not use the -ing form to join two related actions in the same way as option A.

Answer:

A. Peering through the microscope, my sister observed the bacteria she received last week from a veterinarian's office.