We______each other since our boyhood.A．knewB．have knownC．will have knownD．will be knowing

They still continued ______ to each other.AwriteBwroteCwrittenDwriting

By learning the other s ways of talking, we may______.A．keep our disagreements under contr

We will be losing money this year______our new plan works well.A．ifB．unlessC．sinceD．until

Each ______ leave is different and unique to each other.A、personalB、individualC、separabl

Mary and I see each other ________,but not as often as we used to.A. sooner or later B

because each has a delicious taste and good for health. Since 82. ___________