2. Medieval alchemists successfully created gold from lead using primitive methods.
Anonymous Quiz
35%
True
60%
False
5%
Not Given
3. Gold is (1) __________ in the Earth's crust due to cataclysmic stellar explosions called supernovae.
Stars create heavier elements from (2) __________ through a process called nuclear fusion.
Using (3) __________ accelerators, we can mimic the complex nuclear reactions that create gold in stars.
Stars create heavier elements from (2) __________ through a process called nuclear fusion.
Using (3) __________ accelerators, we can mimic the complex nuclear reactions that create gold in stars.
👏1
We use "used to" to talk about actions that happened often in the past but don’t happen now. We can also use it for states that existed in the past.
Examples:
Review the #grammar and answer the questions below.
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👍1
2. Har shanba kuni ertalab multfilmlarni tomosha qilganmisiz?
Anonymous Quiz
17%
Did you used to watch cartoons every Saturday morning?
62%
Did you use to watch cartoons every Saturday morning?
21%
Did you used to watching cartoons every Saturday morning?
👍2
3. When I was a child, I ___________ (play) outside every day after school.
Anonymous Quiz
75%
used to play
11%
use to play
7%
have used to play
7%
used playing
👍2
1. My grandmother ___________ (not have) a mobile phone when she was young.
Anonymous Quiz
2%
don't use to have
20%
hasn't used to have
68%
didn't use to have
9%
isn't used to have
👍2
How many correct answers did you find? 🤔
3 - ❤️
2 - 🔥
1 - 👏
0 - 🗿
3 - ❤️
2 - 🔥
1 - 👏
0 - 🗿
❤8🔥6
Audio
Listen to the audio and answer the questions below.
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👍2
1. Karen has suffered from agoraphobia for about ________ years.
Anonymous Quiz
29%
two
31%
ten
40%
twenty
👍1
2. She __________ what caused her agoraphobia.
Anonymous Quiz
71%
doesn't know
20%
knows
10%
should know
👏2
3. She starts to __________ when she goes into crowded places.
Anonymous Quiz
30%
cry
45%
sweat
25%
shake
👏1
4. Her phobia affects __________ she does.
Anonymous Quiz
61%
everything
22%
nothing
17%
a few things
👏2🤔1
How many correct answers did you find? 🤔
4 - ❤️
3 - 🔥
2 - 👏
1 - 🤨
0 - 🗿
4 - ❤️
3 - 🔥
2 - 👏
1 - 🤨
0 - 🗿
🔥6👏5❤3
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😁2🤨1
#grammar
AT vs. IN🗣
➡️ AT ⏰ :
🔘 Use "at" for specific times or points in time - Aniq vaqtni ko'rsatib berish uchun:
E.g. I woke up at 7:00 am.
➡️ IN ⏳ :
🔘 Use "in" for longer periods - Uzoqroq va aniq bo'lmagan vaqtlar uchun:
E.g. I go to the gym in the morning.
Yana qanday misollar keltira olasiz?✏️
AT vs. IN
Let's learn the difference between these🔢 prepositions.
E.g. I woke up at 7:00 am.
E.g. I go to the gym in the morning.
Yana qanday misollar keltira olasiz?
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1. Why were Hindu-Arabic numerals initially banned in 13th century Florence?
Anonymous Quiz
25%
They were too complex to understand.
50%
They were considered religiously inappropriate.
13%
They were easier to forge or alter.
13%
They were associated with foreign merchants.
2. Gerolamo Cardano found solutions to cubic and quartic equations without using zero because he was unaware of its concept.
Anonymous Quiz
50%
True
38%
False
13%
Not Given
3. Pythagoreans believed that the universe could be described with ............ numerical patterns.
4. In the Middle Ages, other cultures had developed positional systems that included a symbol for ..............
5. In 2001, a prime number that could decrypt ........... was widely shared and distributed.
4. In the Middle Ages, other cultures had developed positional systems that included a symbol for ..............
5. In 2001, a prime number that could decrypt ........... was widely shared and distributed.