A,the best answer I think would be,uses an idiomatic form "...than usual" to comlete a comparison of weights between the new sports car and the usual ones.
None of other choices employs this form,thus they are false."It" in B and "one" in C has not specific referents;also,C distorts the meaning by using "usually" rather than "usual". Choices D produces a fragment without a subject,and E,except the same fault as D,incorrectly employs a perfect present verb tense where a simple present tense is needed.
Since i never read the 800score,i have not much to say about the difference between it and the real test.But perhaps you can tell something about this book!
Thks!
The good life is one inspired by love and guided by knowledge!
