Grades Going Down Junior Year

I’m a junior this year, and I’m struggling a bit with my grades. How much will this impact my chances of admission at the top colleges of the nation?

Freshman Year:
6 A+
1 A
1 A-

Sophomore Year:
5 A+
3 A
1 A-

Junior Year (so far):
4 A+
1 A
2 B (in AP Bio and APUSH)

Will the B’s hurt me significantly? How can I improve in these classes? Thanks

This will appear quite alarming to admission officers, as you got A’s your first two years of high school. Considering junior grades are the most important, I would strongly advise you to work on those grades.

Though not a positive, I disagree with the above comment that two Bs in AP classes is “quite alarming.” That is overstating things. Better to have challenged yourself with APs. Agree that it would be good to improve second semester if you are applying to ultra selective colleges.