问题
选择题
There serious air pollution if people use more and more cars.
A．has
B．will be
C．will have
D．are going to be
答案
答案：B
题目分析：句意：如果人们用越来越多的车，将会有严重的空气污染。if如果，从句用一般现在时，主句用一般将来时。there be 的一般将来时为there will be，there is/are going to be。因此，选B