Do you agree or disagree with the following statement? School should ban junk food, such as soda, chips, and candy.

90 means you need about 23 for every section. We don't know your reading, listening and writing, but for speaking, you are around 21-24 currently. it is not stable. You still need to practice.

For writing, you can send some essays to check out:
http://www.testbig.com/node/add/essay

You may check out your listening here:
http://www.testbig.com/toefl-advanced-listening-practice