- How old are you? - Qual é a tua idade?

Informação retirada do livro Super Jet Line 2 - 6.º Ano, Texto Editores

How old	are	you?
	is	he? she?
	are	they?

I	am	ten years old.
He She	is
They	are

Note
I'm = I am
He's = he is
She's = she is
They're = they are

Countries and Nationalities

Country	Nationality
Afghanistan	Afghan
Angola	Angolan
Argentina	Argentinian
Australia	Australian
Austria	Austrian
Belgium	Belgian
Brazil	Brazilian
Britain	British
Canada	Canadian
China	Chinese
Denmark	Danish
Egypt	Egyptian
England	English
Ethiopia	Ethiopian
Finland	Finnish
France	French
Germany	German
Greece	Greek
Holland (also Netherlands)	Dutch
Hungary	Hungarian
Iceland	Icelandic
India	Indian
Indonesia	Indonesian
Iran	Iranian
Iraq	Iraqi
Ireland, Republic of	Irish
Italy	Italian
Japan	Japanese
Mexico	Mexican
Moldova	Moldovan
Mongolia	Mongolian
Morocco	Moroccan
Mozambique	Mozambican
Nepal	Nepalese
Netherlands, the (see Holland)	Dutch
Nigeria	Nigerian
North Korea	North Korean
Norway	Norwegian
Pakistan	Pakistani
Panama	Panamanian
Paraguay	Paraguayan
Peru	Peruvian
the Philippines	Philippine
Poland	Polish
Portugal	Portuguese
Romania	Romanian
Russia	Russian
Rwanda	Rwandan
Saudi Arabia	Saudi Arabian or Saudi
Scotland	Scottish
Senegal	Senegalese
Serbia	Serb or Serbian
South Africa	South African
Spain	Spanish
Sweden	Swedish
Switzerland	Swiss
Taiwan	Taiwanese
Thailand	Thai
Tunisia	Tunisian
Turkey	Turkish
Ukraine	Ukrainian
United Kingdom (UK)	British
United States of America (USA)	American
Wales	Welsh
Zimbabwe	Zimbabwean

Cores - Colors

The colors	As cores
blue	azul
red	encarnado
yellow	amarelo
green	verde
orange	cor-de-laranja
purple	roxo
violet	violeta
black	preto
white	branco
grey	cinzento
brown	castanho
pink	cor-de-rosa
golden	dourado
silver	prateado
light blue	azul céu
marine	azul marinho
light green	verde claro
dark green	verde escuro

Introducing a friend to a classmate

"Sarah, have you met my classmate John?"
"Sarah, I'd like you to meet my classmate John."
Sarah says:
"Pleased to meet you, John." Or "Nice to meet you, John."
John could say:
"Nice to meet you too, Sarah." Or "Hello, Sarah."
"Pleased to meet you." Or "Good to meet you."

Greeting people you don't know

You can use "Hello" with people you don't know, but a more formal greeting is "Good morning / Good afternoon / Good evening."
The other person normally replies with the same greeting as you have used and then makes polite conversation.

Introducing yourself - At an informal party

"Hello, I'm Sónia." Or "Hello, my name's Sónia."

The reply could be:

"Hi, I'm Sarah." Or "Hello Sónia, I'm Sarah." Or "Nice to meet you, I'm Sarah."

Greetings - Two friends meeting

Friends often say "Hi" to each other.
Then they often ask a general question, such as "How are you?" or "How are things?" or "How's life?"
The reply to this question is normally positive.
"Fine thanks, and you?"
"Fine thanks, what about yourself?"
"Not bad." Or "I can't complain."