Read the passage below and choose the best answer to each question. (+giải thích) ROBOTS Ever since it was first possible to make a real robot, people have been hoping for the invention of a machine that would do all the necessary jobs (56) ________ the house. If boring and repetitive factory work could be (57) ________ by robots, why not boring and repetitive household chores too? For a long time the only people who really (58) ________ the problem their attention were amateur inventors. And they came up against a major difficulty. That is, housework is actually very complex. It has never been one job, it has always been many. A factory robot (59) ________ one task endlessly (60) ________ it is reprogrammed to do something else. It doesnt run the whole factory. A housework robot, on the other hand, has to do several different (61) ________ of cleaning and carrying jobs and also has to cope (62) ________ all the diffenrent shapes and positions of rooms, furniture, ornaments, cats and dogs. (63) ________, there have been some developments recently. Sensors are available to (64) ________ the robot locate objects and avoid obstacles. We have the technology to produce the hardware. All that is missing the software- the programs that will (65) ________ the machine. 56. A. through B. over C. around D. for 57. A. managed B. succeeded C. made D. given 58. A. did B. took C. gave D. showed 59. A. carries over B. carries out C. carries off D. carries away 60. A. until B. while C. since D. when 61. A. systems B. methods C. ways D. types 62. A. from B. with C. by D. for 63. A. However B. Therefore C. Besides D. Moreover 64. A. enable B. help C. assist D. allow 65. A. practice B. perform C. order D. operate