And parents should not shop for a tutor based solely on the number of hours in a one-on-one package. "It's really about how the teacher is able to convey the material," said Robert Hsueh, a partner in IvySuccess, an individual tutoring and admissions strategy company in Garden City, N.Y.
Q 1: Does "based solely on....." modify "parents" or "a tutor"?
There is a similar structure.
Based on his research with students in 2003, Edward B. Fiske, co-author of "The Fiske New SAT Insiders Guide" (Sourcebooks), says the most useful way to prepare for the SAT is to take previously administered tests for practice. "Do it under timed conditions, simulate the real testing conditions, analyze what you do wrong and then work on that," he advised. "You're going to learn your test-taking style."
Q 2: what is the subject of the phrase? What is modified by it?
What do you think?