curriculum/challenges/english/blocks/zh-a1-practice-numbers-20-to-99/698880b3876a03850d90f304.md
Excellent work so far! You are now completing the final line of your first Chinese tongue twister. It helps you practice distinguishing the si and shi sounds in different tones, as well as the pronunciation of single-digit and double-digit numbers.
Listen to the audio and complete the sentences below.
四是四 (sì shì sì)，十是十 (shí shì shí)，十四是十四 (shí sì shì shí sì)，BLANK 是 (shì) BLANK。
四十 (sì shí)
This is the number 40 in Chinese.
四十 (sì shí)
This repeats the number 40 in Chinese.
Chen Na is saying:
四是四 (sì shì sì)，十是十 (shí shì shí)，十四是十四 (shí sì shì shí sì)，四十是四十 (sì shí shì sì shí).
This sentence means "4 is 4, 10 is 10, 14 is 14, and 40 is 40".
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"setup": {
"background": "company1-breakroom.png",
"characters": [
{
"character": "Chen Na",
"position": {
"x": 50,
"y": 15,
"z": 1.4
},
"opacity": 0
}
],
"audio": {
"filename": "ZH_A1_numbers_and_personal_information_numbers_20_99.mp3",
"startTime": 1,
"startTimestamp": 227,
"finishTimestamp": 237.71
}
},
"commands": [
{
"character": "Chen Na",
"opacity": 1,
"startTime": 0
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{
"character": "Chen Na",
"startTime": 1,
"finishTime": 2.6,
"dialogue": {
"text": "四是四 (sì shì sì)",
"align": "center"
}
},
{
"character": "Chen Na",
"startTime": 3.09,
"finishTime": 4.81,
"dialogue": {
"text": "十是十 (shí shì shí)",
"align": "center"
}
},
{
"character": "Chen Na",
"startTime": 5.45,
"finishTime": 7.89,
"dialogue": {
"text": "十四是十四 (shí sì shì shí sì)",
"align": "center"
}
},
{
"character": "Chen Na",
"startTime": 8.53,
"finishTime": 11.21,
"dialogue": {
"text": "四十是四十 (sì shí shì sì shí)",
"align": "center"
}
},
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"character": "Chen Na",
"opacity": 0,
"startTime": 11.71
}
]
}