In the 8th century,the game was very popular.In the 8th century,the game was very popular.这句话前面的状语一定要加逗号吗?如果换成the game was very popular in the 8th century,后面状语就不需要加逗号了吗?这两个句子

in the 16th century什么意思 in the 20th century是什么意思 Europe in the 18th century是什么意思 Realistic novel in the 18th century in 18th century 要不要加the变成in the 18th century 英译中 in the 1950s in the 19th century in the second half of the 19th century a leading figure in the 20th century theater. meaning in the early part of the 19th century 和 at the beginning of the 19th century 的区别. He was a fomous artist in _____. A the 19th Century B the 19 Century C 19 Century 初中英语in the 18th and 19th centuryin the 18th and 19th century（century要变为复数centuries吗?为什么?） In the 8th century,the game was very popular.In the 8th century,the game was very popular.这句话前面的状语一定要加逗号吗?如果换成the game was very popular in the 8th century,后面状语就不需要加逗号了吗?这两个句子 life in the 21st century will be different from life in the 20th century是什么意思 The camera was the one of the gerat v_____ in the 19th century the story takes place at the turn of the 19th century in the rural English The camera was the one of the gerat v_____ in the 19th century The temple dating back to the 14th century was destroyed in the war . 可以说in 20th century?in后必须加the吗?