Helpful phrases

1. In my opinion...

In my opinion, prices are too high. 

(私の意見では、価格が高すぎると思います。)

2. I (agree/disagree) with the idea that...

I (agree/ disagree) with the idea that prices should increase more.

(私は価格がもっと上がるべきだという考えに（賛成/反対）ます。)

3. One example that supports this is...

One example that supports this is when wages increases with prices.

(これを裏付ける一例は、賃金が物価とともに上昇する場合です。)

4. The lecturer suggests that...

The lecturer suggests that prices should increase more.

(講師は価格をもっと値上げすべきだと言っています。)

5. To sum up...

To sum up, prices are too high when wages are not increasing. 

(要するに、賃金が上がらないのに物価が高すぎるということです。)