16.Twelve people ________ the jury in a law court to listen to the facts about a crime and to decide whether the person accused is guilty.
A. are made up of B. constitute C. consist of D. be made of
17.Although vitamins ________ health, you cannot skip the traditional health measures like exercising and having a low-fat diet.
A. are harmful to B. is good for C. is useless to D are beneficial to
18.We should try our best to ________ the land into good fields.
A. convert B. utilize C. attain D. observe
19.They _________ tremendous hardship on their journey to the South Pole.
A. proceeded B. endured C. provoked D. inserted
20.The game will keep the children ____________ for most of the evening .
A. occupied B. endured C. provoked D. proceeded