201. what makes the space shuttle _____ is that it takes off like a rocket but lands like an airplane.
a. exceptional b. strange c. unique d. rare
202. people cannot but feel _____, for they simply cannot understand how he could have made such a stupid mistake.
a. puzzled b. delighted c. induced d. inspired
203. when a space shuttle has accomplished its _____, it can be ready for another trip in about two weeks.
a. venture b. mission c. commission d. responsibility
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