24. The United States Constitution requires that the President( be) a natural-born (citizen), thirty-five years of age or (be older), who has lived in the United States for a (minimum of) fourteen years.
39.(The nitrogen) makes up (over) 78 (percent of) the Earth's atmosphere, the gaseous mass (surrounding) the planet.
14. According to some critics, the novels of William Burroughs demonstrate the major hazard of absurd literature, _____ tendency toward over-embellishment and incoherence.
(A) notwithstanding
(B) besides
(C) is a
(D) its
为何不选b?
1 Scientists estimate that (as many as) hundred (millions) visible meteors (enter) the Earth’s atmosphere (every day).