Answer to Question 1
Answer: TRUE
Explanation: Examples of linking verbs include Paul is a man (linking verb is followed by noun man). Jan seems tired (linking verb seems followed by adjective tired).
Answer to Question 2
Answer: TRUE
Explanation: In the following sentence, two independent clauses are separated by a semicolon that is followed by however: The hour is late; however, I am not sleepy. Note that the conjunctive adverb, however, is separated from the clause that follows with a comma.