问题
If city noise _______ from increasing, people _______ shout to be heard even at the dinner table
A:are not kept; will have to
B:are not kept; have to
C:do not kept; will have to
D:do not kept; have to
B:are not kept; have to
C:do not kept; will have to
D:do not kept; have to
正确答案是：
