1. Scientists have invented new devices to help people live a longer life.

→ New devices ……………………………………………………………………………………

2. The noise from the music club is loud, so the residents of the street cannot sleep. (because of) ………………………………………………………………………………………………………

3. The fish are dead due to the polluted water. (rewrite the sentence using causes) ………………………………………………………………………………………………………

4, Cars emit dangerous fumes, so lots of people die of diseases caused by air pollution If ……………………………………………………………………………………………