1.I bought some pencils.They are in different colours.(Realative clause:which)
2.He didn't stop his car.The traffic light turned red.(use:althought)
3.Have you ever spoken to the people?They live next door.(Realative clause:who)
4.He took a lot of photographs even thought the sky was dard(use:despite)
5.The servant will come when you ring the bell.(use:if)
6.Taking these medicines makes you fell better.(use:if)