25. About one-fifth of all the energy used in the United States it is changed into electric power.
(A)About
(B)all the energy
(C)it is
(D)electric powe

21. American children are taught to treat their pets nice.(A) are taught(B) to treat(C) their pets(D) nice

22. He decided to revisit the scenery of the last evening's party.(A) decided(B)revisit(C)the scenery(D) evening's party

23. The experiment proved to Mary and I that serious attention to details produced good results.(A) proved(B) Mary and I(C)attention to(D)produced

24. Many industrial workers in the post-war years won improved job security, excellent fringe benefits, and higher paid.(A) Many industrial workers(B)post-war years(C)improved(D)higher paid

26. For many years, prison inmates have protested such conditions as contaminated food, a brutalizing environment, and conditions are unsanitary.(A)many years(B)have protested(C)conditions(D)conditions are unsanitary

27. Apparently threaten by several crimes in his neighboring area, John hired two more watchmen.(A) threaten(B) crimes in his neighboring area(C)hired(D) watchmen

28. Despite of all the snow in the valley, the cabin remained warm.(A) Despite of(B) in the valley(C) remained(D)warm

29. The committee for local development asked that the highway is built alongside the railway.(A) for local development(B)asked(C)is built(D)alongside

30. Symptoms of Internet addiction includes a constant desire to get online, and feelings of restlessness or irritability when not online.(A)Symptoms of Internet addiction(B)includes a constant desire(C) get online(D) feelings of restlessness or irritability

31. A test is valid if it measures what it is intended to measure. A test is reliable if it is consistent. Therefore, a test may be consistent even though it does not measure what it is intended to measure.The writer's primary purpose in this passage is to(A) contribute to recent research in testing validity and reliability.(B) question whether we should use the terms valid and reliable to describe tests.(C) insist that all tests must be both valid and reliable.(D) explain the difference between validity and reliability.