1) The saguaro, found in desert regions in the southwestern united states, ..... cactus on the world. a) Is the largest b) The largest c) That is the largest d) The largest that is a 2) Despite its fishlike form, the whale is ..... and will drown if submerged too long. a) An animal breathes air that b) An animal that breathes air c) An animal breathes air d) That an animal breathes air 3) Like jupiter, saturn is a large, gaseous planet composed .... of hydrogen and helium. a) It is mostly b) Mostly c) Almost d) Both are almost 4) .... ballet dencers learn five basic positions for the arms and feet. a) All of b) Of every c) All d) Every 5) Protein digestion begins in the stomach .... ends in the small intestine. a) While b) And c) How d) Because 6) Some colonies of bryozoans, small marine animals, form .... with trailing stems. a) Creeping colonies b) Which colonies creep c) Creeping colonies are d) Colonies creep 7) .... of classical ballet in the united states began around 1830. a) To teach b) Is teaching c) It was taught d) The teaching 8) The universe is estimated .... between 10 billion and 20 billion years old. a) Being b) To be c) Which is d) Is 9) .... freshwater species of fish build nests of sticks, stones, or scooped-out sand. a) As the many b) Of the many c) Many d) Many of them are 10) The chemical composition of sandstone is the same as .... a) That of sand b) That sand is c) Sand is that d) What of sand

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