Прошу fill in the gaps with a, an, the or no article. give reasons.
siberia is 1) vast region in 2) of 3) russia and 4) kazakhstan. it makes up about 58% of 5) russia and covers almost 6) whole of northern 7) asia. it extends from 8) east of 9) ural mountains all the way to 10) pacific ocean and from 11) of 12) ocean to 13) borders of both 14) and 15) china. novosibirsk is 16) largest city and with record low temperature of -71.2°c, 18) oymyakon is 19) coldest town on earth! for centuries, siberia was 20) mostly unexplored and uninhabited region, but in 21) 1905 22) .. trans-siberian railway linked it with western cities. these days, thousands of tourists visit siberia every year, especially 23) baikal, 24) world's deepest lake!