Scientists who study ________ noise say
题型:选择题
问题:
Scientists who study ________ noise say that ________ average noise level in New York is 72.5 decibels.
A./;the
B./;an
C.the;an
D.a;the
Scientists who study ________ noise say that ________ average noise level in New York is 72.5 decibels.
A./;the
B./;an
C.the;an
D.a;the