С. these are confused pairs of words. choose the correct alternative for each sentence 1. accept / except a) we found everything right document. b) we could the explanation. 2. ensure / insure a) our new research strategy we get the best possible results. b) this policy against theft and fire damage. 3. principle / principal a) the we didn't pursue it was the cost. b) we didn't want to continue the case, mostly because . 4. personnel / personal a) many of her had been stolen. b) smith’s company has a ………… problem: their employees want a 20% pay increase.