Choose the word or phrase among A, B, Cor D that best fits the blank space in

Choose the word or phrase among A, B, Cor D that best fits the blank space in the following passage.Space leisureFor most of their time in orbit, astronauts are fully (1) ..........with repairs and scientific experiments. But time for relaxation and recreation is essential. To reduce boredom, homesickness and isolation, astronauts are (2).........to receive a weekly video telephone call from home, as well as daily email messages.If boredom (3)........, there are plenty of windows from which to admire the ever-changing (4)..........as the International Space Station orbits the planet every 90 minutes. The crew enjoy searching for familiar landmarks, watching lightning flashes, and waiting for one of the (5)........... sunrises and sunsets.There is a wide choice of leisure activities (6).......... crew members are (7)........ to take along their personal choice of entertainment. These range from chequers or chess sets to books and CDs or their own instruments.Time (8)........ and bond together is essential for any crew. Meal times are generally set aside for periods of friendly get-togethers, and evenings often (9)......... the crew settling down to watch the (10)..........DVD movies.Question 1