66.
Your Answer is
Correct Answer is H
Explanation
Speaking guides the sentence adverbial, which needs to be separated from the main body of the sentence with a comma, and H is correct.
Item F/J: Because the underlined part is not a complete sentence, F/J is wrong.
Item G: There are two sets of subject predicates before and after the underlined part, and there are no conjunctions, which is wrong.