文法測驗

Although vision is well developed in many species of snakes,

 (A) it is by no means the only way.

 (B) it has spots on its body that look very much like eyes.

 (C) a section of its body puffs up and the eyespots enlarge.

 (D) that can receive sensations through another part of its body.

 (E) it can locate and attack prey even at night.

 (F) this amazing snake can detect your presence.

 (G) there are other types of snakes that are totally blind.

 (H) with which a fast running antelope can flee from the hungry predator.

 (I) how quickly a rabbit can scurry across a field to escape a cheetah.

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