The process by which similarly charged particles repel each other and are thus moved within a medium is termed

Four-year-old Keifer says, "We wented to school.". This most likely indicates that:

a. Keifer's parents use poor English at home b. Keifer has forgotten the proper way to form past tense c. English is not Keifer's native language d. Keifer is overgeneralizing a grammatical rule

Perhaps one of the most important ways to turn a controlled task into an automatic one is to ______.

A. practice regularly B. stop worrying about it C. try it only once D. try different ways of completing it