问题
选择题
29. 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 to
C．do not kept; will have to
D．do not kept; have to
答案
答案：A
考查keep…from doing sth.结构的被动形式。【译文】如果城市噪音不制止，二十年后人们不得不在餐桌上吃饭就得大声喊叫才能听见。