If city noises　　　 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 keep；will have to　　　 D．do not keep；have to

从所给的四个选项中，选出最佳答案

If city noises ______ from increasing, people ______ shout to be heard even at the dinner table 20 years from now.　　　

[　　]

A．are not kept, will have to

B．are not kept, have

C．do not keep, will have to

D．do not keep, have to