5. Find the unnecessary word for each sentence.
1. They won't ban GM products unless they are not proved harmful. ..............
2. By 2050 half of the world's population will have be living without direct access to fresh water. ..............
3. This dry weather is for sure to lead to a water shortage. ..............
4. We should support recycling projects as if we want to protect forests. ..............
5. According to experts, sea levels will have been risen up to 95cm by the year 2100. ..............
1.are
2.have
3.a
4.as
5.been