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】29、 (A) keep away (B) keep on (C) keep up (D) keep up with
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