Children usually ______ both parents because they inherit characteristics from both.

单项选择题John Philip Sousa, (who) (many) people consider the (greatest) composer of marches, wrote his music during the era (known) as the Gay 90s.

单项选择题(Before) she died, the daughter of Andrew Jackson (who) (lives) in the family mansion (宅第) (used) to take tourists through her home.