In terms of voice of the verb, the clauses in the
sentence “Throughout his career, Dr. Restak has been asked
by dozens of patients how they can improve their memory.”
(lines 125-127) are, respectively, in the
The sentence “Another of Restak’s tried-and-true
memory exercises simply requires a pen and paper or audio
recorder.” (lines 78-80) contains at leat a/an
In the sentence “Over his decades of treating
patients, Dr. Restak has noticed that fiction requires active
engagement with the text” (lines 96-98), there is a/an
The sentence “The Complete Guide to Memory: The
Science of Strengthening Your Mind, Restak’s latest book,
includes tools such as mental exercises, sleep habits and diet
that can help boost memory.” (lines 09-13) contains a