317] If city noise from increasing, people shout to be heard even at the dinner table 20 years from now. [译文] 如果不制止噪音继续污染.从现在起20年后人们就不得不在吃饭的时候大声喊叫才能听得见. 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 [答案及简析] A. keep sth. from doing sth.的被动形式,have to可以用于任何人称. 【查看更多】
