54. Which of the following is an invention?
A. A forest B. A sheep
C. A river. D. A train.
53. What do inventions have?
A. Computers B. Machines
C. Labs D. Clever ideas.
52. People didn’t have such things as pens or rulers _________________.
A. a century ago B. thousands of years before
C. thousands of years ago D. several centuries later
51. Who make most of the things in your school bag?
A. Workers B. Farmers
C. Shopkeepers D. Inventors
49. A. saved B. laughed at C. caught D. thanked
48. A. always B. never C. often D. usually
47. A. girl B. boy C. woman D. man
46. A. different B. same C. fat D. bad
45. A. thought B. spoke C. said D. agreed
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