A
conjunction is a word used to connect other words, phrases and clauses together. 连词是用于将其他单词、短语和从句连接在一起的单词。
Common conjunctions: and, but, or, because, so
常用连词：and、but、or、because、so
And: also, in addition to. “And” is used when the statements are similar.
例句：
He's 10 and she's 12.
My mom and dad are teachers.
Tim usually practices the piano and plays football at weekend.
But: however, despite this. “But” is used to connect two opposite ideas.
例句：
I love ice cream, but he loves apples.
It's sunny and hot, but I like it.
She's 40 years old, but she looks much younger than her real age.
Or is used to express choices.
例句：
Do you like playing football or badminton?
Would you like tea or juice?
Who's taller? Michael or Tom?
So is used to link between cause / reason and results
例句：
He's hungry so he gets some food.
The weather isn't very nice so we don't go camping.
He lost the key so he couldn't get into his room.
Because is used to give reasons.
例句：
She doesn't go to school because she's sick.
Because it rains, I wear a raincoat.
Kate was happy because she won the competition.
