【C9】A．doubledB．reducedC．redoubledD．increased

A．Increase the number of strokes.B．Increase heart attacks.C．Increase asthma attacks.D．

【C16】A．increasinglyB．increasingC．increaseD．increased

The word "concentrated" in the passage is closest in meaning toA．dividedB．reducedC．interes

【C4】A．causedB．reducedC．adaptedD．compelled

【C18】A．weakenedB．reducedC．diminishedD．decreased

For their own safety, household pets should be______to their own yard.A．confinedB．reducedC