Punctuation, one is taught, has a point: to _____29_____ law and order. Punctuation marks are the road signs _____30_____ along the highway of our communication—to control speeds, provide directions and prevent _____31_____ collisions. A period has the unblinking finality of a red light; the comma is a flashing yellow light that asks us only to slow down; and the semicolon is a stop sign that tells us to ease gradually to a halt, _____32_____ gradually starting up again.
【題組】32、 (A) before (B) after (C) earlier (D) later