Our（）sensitivitydecreaseswithage.Byage60，mostpeoplehavelost40percentoftheirabilitytosmelland50percentoftheirtastebuds.
A、sensibleD
「句意」 我们的感官能力随着年龄的增长而下降。比如说，到60 岁的时候，多数人失去了他们40%的嗅觉能力和 50%的味觉能力。
「难点」 sensible 意为“明智的，合情理的” ;senseless意为“失去知觉的，不省人事的“; sensitive 意为”敏感的“; sensory 意为”感觉的，传递感觉的“。
Frankalmostneverreceivedanyeducation，（）?
Although____Spanish，heattendedthecourse.
The teachers’union _________ a lawsuit against the district calling for repairing “deplorable” school conditions.
He set up in business（）his own and was very successful.
To obtain a satisfactory result ， one must apply two（） of paint on a clean surface.
