/h.w2s1Y*K/i/M7V1J/XDon’t make any noise while the students_______ to the class.'s+m5r8u)^(e)N'a8o*d'c
A. are listening's+m5r8u)^(e)N'a8o*d'c
B. listened's+m5r8u)^(e)N'a8o*d'c
C. have listened's+m5r8u)^(e)N'a8o*d'c
D. had listened's+m5r8u)^(e)N'a8o*d'c