verb IL EXERCISES: A The following are all simple sentences. Copy them all in your answer sheets then underline the basic parts , and on the blank, write : SS-SV for simple subject-simple CS-SV for compound subject-simple verb, SS-CV for simple subject, compound verb. CS-CV for compound subject, compound verb. 1. The clock struck twelve. 2. Mom got up and checked on each of the boys. 3. Martin and Arvin were not home yet. 4. She started to get worried. 5. She went to Dad and woke him up ​