THE MORE POLLUTED AIR WE BREATHE, ... WE GET.A. THE MORE WEAKERB....

37. - 70 TESTS LEVEL A 37. - 70 TESTS LEVEL A
70 TESTS LEVEL A

37. The more polluted air we breathe, ... we get.

a. the more weaker

b. the more weak

c. the weaker

d. weaker more

 c