21.   So a television picture changed at the same time as you saw your ex-lover walking down the road opposite.

22.   The elaborate cycle was repeated numerous times as the inaugural address neared.

23.   The high nickel content of meteoritic iron emerged at about this time as an accepted indicator of nonterrestrial origin.

24.   The proportion of premature births was almost three times as high if the interval was less than a year.

25.   The R-word appears to be a coincident indicator, turning at roughly the same time as output.

26.   The ratios change over time as potassium undergoes radioactive Decay and emits argon gas.

27.   The vaccine can be given at the same time as immunisations against diphtheria, whooping cough and tetanus.

28.   The work of Wordsworth came into existence at the same time as the growing desperation in the cotton mills.