Traditional grammar is concerned with the sentences we actually speak, which is referred to as

We encounter events in our lives and in the mass media involving psychology

a) only if we are in college. b) almost every day. c) infrequently. d) never or almost never.

During Stage 3 NREM,

a. delta waves first begin to appear. b. sleep spindles occur. c. people tend to experience hypnic jerks. d. people tend to experience nightmares.