CREATE TABLE "table1_228973_7" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text
);

Question: When 129 is the number in the series who is the writer?
SQL: SELECT "written_by" FROM "table1_228973_7" WHERE "no_in_series"=129;

Question: When "past tense" is the title who is the writer?
SQL: SELECT "written_by" FROM "table1_228973_7" WHERE "title"='\"Past Tense\"';