The thirteen stripes of the United States flag represent the original thirteen states of the Union, which they all were once colonies of Britain.

There are _____ days in June and _____ day is Children’s Day. A: thirteen; first B: thirty; the second C: thirty; the first D: thirteen; the first

十三的英文单词() A: thirteen B: thirty

I live at No. _____ . A: thirteen B: thirty

By the time he was thirteen , Thomas______to make a living by himself.

The territory, which Thompson was exploring _____. A: had been abandoned by the Mayas about thirteen hundred years previously. B: had been occupied and developed by the Mayas about thirteen hundred years before. C: had been deserted by the Mayas as soon as the Spaniards arrived. D: was conquered by the Mayas thirteen hundred years ago.

People in the west often think that the number thirteen is____(luck).

那辆汽车是以每小时三十哩的速度行驶。The car ran at the rate of an hour. A: thirteen miles B: thirty miles C: thirteen mile D: thirty mile

In the western culture, thirteen is regarded as the unlucky number because it is related to the story of __________.

What athletic events were held in the first thirteen Olympic Games?