Can I still bring my grades up my junior year?

<p>Im a junior and the first 9 weeks i got A's and B's. The second nine weeks i got A's, B's, C's and an F in algebra 2 because my grandmother was sick alot and I couldnt focus. If I try to get A's and a few B's the next 9 weeks could i possibly get into a good college like george mason, vcu, odu, jmu, or radford? Is there anything special I could do to get noticed by colleges? Is it too late to bring my grades up. My freshman and sophmore year transcipts have A's and B's and maybe 2 C's for each year.</p>