`1.` Tom is sleeping so you can't speak to him at the momment.

`-` so: nên

`-` Quan hệ nguyên nhân - kết quả

`-` Clause + so + clause

`2.` My father wanted me to be a doctor but I didn't

`-` but: nhưng

`-` Quan hệ tương phản

`-` Clause + but + clause

`3.` Mai didn't understand the lesson so he couldn't do the homework.

`4.` A bee flew into the room this morning and it stung me.

`-` and: và `->` 

`-` Quan hệ tăng tiến

`-` Clause + and + clause

`5.` They put video cameras in shops because they want to stop people from stealing things.

`-` because: vì, bởi vì

`-` Quan hệ nguyên nhân - kết quả

`-` Clause + because + clause

`6.` Pêtrr couldn't speak Spanish and French and he couldn't write them.

`7.` We went to the cinema because the museum closed early