1 Optimal atomic clocks can calculate time with /precise/ predetermined/pinpoint/ accuracy. 2 Obelisks and sundials function according to the same basic /structures/principles/crossings. 3 We live in a(n) /season/era/moment/ of rapid technological change. 4 People's /milestone/quest/leap/ for knowledge has led to brilliant inventions. 5 Will you please fit a meeting with the team /on/into/at/ your busy schedule? The museum /features/highlights/depicts/ a wide variety of clocks and watches from around the world. 7 It's time to start your presentation; you've already /spent/ passed/wasted/ enough time. 8 Sundials allowed people to form a rough /amendment/ alternative/estimate/ of time.​

krasilovaen    3   29.12.2020 08:48    309