.If their marketing plans succeed, they ____ their sales by 30 percent.
A．will increaseB．have been increasingC．have increasedD．would be increasing
A
考查if引導(dǎo)條件狀語(yǔ)從句的用法。主句用一般將來(lái)時(shí)，從句用一般現(xiàn)在時(shí)表將來(lái)。句意：如果他們的營(yíng)銷計(jì)劃成功的話，他們的銷售額會(huì)增加30%。
點(diǎn)評(píng)：f引導(dǎo)條件狀語(yǔ)從句主句用一般將來(lái)時(shí)，從句用一般現(xiàn)在時(shí)表將來(lái)。
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