Choose the option (A, B, C or D) that best completes each of the following sentences.
1. Many people are interested in living __________ the planet Mars.
2. Will robots look __________ the elderly and children?
3. In the future, we’ll live in a hi-tech house on __________.
4. There will be a helicopter on the roof __________ I can fly to school.
5. In the evening, my family usually watches TV in the __________ room after dinner.
6. A __________ TV uses existing wireless computer networks or WIFI to get signals from space.
7. Keangnam, which is the tallest __________ in Hanoi, is a 72-storey building.
8. In some restaurants in China, waiters are now replaced by __________ because they are novel and fun.
9. A modem __________ can help keep your food fresh longer than the old ones.
10. My family lives in a(n) __________ in the center of Hanoi.
