问题
选择题
If their marketing plans succeed, they _____ their sales by 20 percent.
A．will increase
B．have been increasing
C．have increased
D．would be increasing
答案
答案：A
考查时态。“主将从现”主句用将来时态条件状语从句用一般现在时态。句意：如果他们的市场营销计划成功的话他们的销售会增加百分之二十。选A