Complex sentence using “and, but , and because”

identify the sentence

300

This word gives a reason.

because

400

This word shows a contrast.

but

500

This word connects similar ideas.  

and

complete the sentence

300

"I like pizza ___ I don’t like pasta."

and

400

"She wanted to go, ___ she was too tired."

but

500

Complete the sentence: "He was late ___ he missed the bus."

because

chose a cojuction

300

"He is smart ___ he works hard."

and 

400

I wanted to go out, ___ it started raining."

but 

500

She smiled ___ she was happy."

because