confusing → confused
Foreign visitors can get a bit confused because there are too many customs in this country.

for → of
In our country, we have the time-honored tradition of worshipping our national heroes and ancestors.

mustn't → shouldn't
You shouldn't tell anyone what I have just told you; it's a secret among you and me only.

much → many
There were many more people joining the annual festival than I had thought at first.

When we turned 16 years → When we turned 16
When we turned 16, our parents started to allow us to go out at night until 10.

from → to
It's so convenient to send a letter to my village since the nearest post office is miles away.

lazer → laser
There is a spectacular evening firework show with music and a laser show in addition to live entertainment.

Though → Although
Although I was in England at that time, I was able to enjoy the Glastonbury Festival.

many → few
Our country does not have many carnivals; however, we have many traditional festivals.

had better than think → had better think
If you think that the task is going to be easy, then you had better think it over.