请选择DCBA5`+g'P3r;k5L(M3a+G(k)L3s:n8Q'r I hear you . you speak louder ?2u0b5l3b(O
A. may , Can2u0b5l3b(O
B. can’t , Can2u0b5l3b(O
C. must , Can2u0b5l3b(O
D. will , must2u0b5l3b(O