The phrase "highest grade possible" is correct and usable in written English.
You can use it when referring to the highest level that can be achieved in an exam, assignment, job, etc. For example: "The student was determined to achieve the highest grade possible on his final assignment."
What would happen if he got the highest grade possible?
He scored the highest grade possible for a child on the test.
But to many listeners it was news when 60 Minutes estimated that a whopping 80-85% of all oil labeled extra virgin in this country - the highest grade possible - is not actually extra virgin.
Figure 2 shows the results of the independent grading exercise for Study 1, with the grades converted to a numeric value so that they can be compared across the conditions (10 represents the highest grade possible and 0 the lowest).
I say this because a 4.0 simply means you were able to master the subject matter being studied with the highest grade possible for the requirements of the degree or course.
Palmitoleic and linoleic acids were obtained from Acros, and stearic acid was from AlfaAesar, oleic acid from Sigma, arachidonic acid from Biomol, and elaidic acid from MP. Ammonium molybdate (Fisher) and malachite green oxalate (Acros) were obtained at the highest grade possible.
Many strive to achieve the highest grades possible, rather than truly understand the material, as it is clearly stated that high grades will get them into the medical school of their choice.
"That access to water and ample storage capacity put Oiltanking Partners in prime position to export oil in the event of federal approval of such business". Investor credit-rating agency Standard & Poors also chimed in, giving the merger a BBB+ investment rating (among the highest grades possible) and taking note of the company's export agenda.
Your performance in college will determine whether you're accepted into law school, so get the highest grades possible.
We work with the property owner to select the highest grade materials possible, and we continue to contact the customer even after the job has been completed.
At the Edge, a more-than-500-unit glass-and-steel residential building on the waterfront in Williamsburg, Brooklyn, generators are on the eighth floor instead of the basement; hefty precast concrete panels were used on the exteriors to minimize building motion in high winds; and the entrance was built to the highest level of grade possible.
