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After he _______ the dense forest, he was struck by the sheer volume of natural sounds surrounding him

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Three hours is a long time in the cinema, longer than most audiences are prepared to _______

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I'm terrible at keeping secrets. My face goes beet red and gives me _________ every time

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Some younger people nowadays tend to be indifferent _______ burning environmental problems

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Could you pass me ______________, please?

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If you need anything, don't hesitate _________ me

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 _______ you _______ an English class tomorrow?

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I saw you on the bus yesterday. Where ____ you ____?

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The fictitious androids written about in the mid-1900s are becoming a reality with advances in the field of robotics. Japan and Korea have been pioneers in this field. They regularly compete to be the first. The focus on most reseachers is in (31) _____ life-like, attractive female androids. A Japanese research group led by Hiroshi Ishiguro created ther world’s first female android, which is called Actroid in 2003. The early model was limited so upgrades were made and the dramatic entertainment model was released in 2006. Actroids are covered with a silicone skin and have built-in sensors making them (32) _____ of reacting to humans, and they can also mimic many human behaviors. (33) _____, they can be programmed to speak in any language. The Korean android, EveR-2, released in 2006, was designed by a team from Kitech. They claim that she is more life-like than Actroids, and she can mimic emtions. She can also speak and move her lips to match her (34) _____. Future models are expected to have higher mobility and even be proficient in dancing. Research teams have also created male androids. One in particular is the Germinoid HI-I. Regardless of the competition, it’s clear that this technology will one day present us (35) _____ the dilemma of determining human from machine

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IPF has installed more than 60 air devices _______ in campus buildings and 238 in campus elevators.

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I have to go hand __________ my term paper now

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People should refrain from talking _______ while hanging out with friends

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She’ll still be groggy. She ________ undergoing surgery for three hours.

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She is an old head on young _______, and doesn’t know how to interact with her peers

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Peter ____ the book for 4 hours non-stop. He must have found it unputdownable

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All the kids ____ their homework when the volunteer team ____

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Tree cover would prevent further soil __________

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Drone racing is an exciting new sport, that has become popular faster than (1)______ other sport before it. Pilots steer small and lightweight, but high-powered drones along courses with obstacles. They fly through gates and around flags at speeds of over a hundred miles an hour. They control the drones using VR-like headgear. Every drone has a camera (2)______ to it so that spectators can also view flights either on a big screen or with special headgear. The races take place either outdoors - in big stadiums, or indoors in old warehouses and sports arenas. (3)______ are short because the battery time of drones is limited. (4)______ drone racing started only a few years ago there are already international competitions that take place all over the world. In professional leagues, drone pilots compete for thousands of dollars. In March, the World Drone Prix was staged in Dubai. A 16-year old British teenager not only one the race but also received a prize money of 250 000 dollars. Television and other media have become aware of drone racing. ESPN, an Amercian sports channel, will be broadcasting international drone races starting this August. Races are also recorded and uploaded to YouTube and other video platforms (5)______ they can be viewed over and over again

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When hiring new employees, we only offer positions to applicants ------- qualifications match the company's high standards.

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That song was popular _______ people from my father's generation

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I spent an hour at the station _________ for the train